This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
PASSIVE - You gain Magical Power equal to 7% of your Mana from items.
PASSIVE - Every 10s the Pendant activates, subtracting 1s from all of your abilities currently on Cooldown. The initial countdown will not start until you leave the fountain.
PASSIVE - Your abilities deal an additional 1% of the target's maximum Health as Magical Damage. If the target has over 2000 Health, your ability bonus damage scales up. This effect reaches a maximum of 9% Maximum Health damage at 2750 Health. Subsequent hits on the same target do half the bonus damage for the next 3s.
PASSIVE - Whenever you damage an enemy god with an ability you mark them to take 5% increased damage from all sources. This effect lasts for 8s and can only occur once every 15s.
PASSIVE - Using an ability gives your next Basic Attack within the next 8 seconds +75% of your Magical Power as additional Magical Damage. The effect can only apply once every 2 seconds.
PASSIVE - Gain a stack each time you damage an enemy god with an ability or Basic Attack. At 4 stacks, your next ability or Basic Attack deals 20 + 4 per level Magical damage.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
PASSIVE - Upon getting a kill or assist on an Enemy god you gain Atalanta's Agility for 10s. This effect increases your Attack Speed by 20% and decreases the Movement Penalty for attacking, backpedaling, and strafing by 30%.
PASSIVE - Your Critical Hits provide you with 10% Physical Penetration for 4s.
PASSIVE - While below 60% Health, you gain an additional 15% Physical Lifesteal for 5 seconds. Can only occur once every 15 seconds.
PASSIVE - Every fourth Basic Attack triggers a chain lightning, damaging the target and up to 4 nearby enemies for 15 damage +60% of your total Basic Attack Power.
PASSIVE - On Basic Attack hits, deal Physical Damage equal to 1.5% of the target's maximum Health. If the target has over 2000 Health, the bonus damage scales up. This effect reaches a maximum of 6% of the targets Maximum Health at 2750 Health.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item will allow you to teleport up to 45 units away instantly. This item can not be used if you have taken or dealt damage in the last 3s. Cooldown - 140s.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
GLYPH - Each time you are hit by an ability, gain a stack of 5 Protections that corresponds to the damage type you were hit with, up to a max of 4 of each type. Once you reach max stacks of both kinds, gain a burst of 20% Movement Speed and double your Protections gained by this effect for 8s, after which all stacks are removed.
AURA - Enemy gods within 55 units have their Magical Power reduced by 50.
AURA - Enemy gods within 55 units have their healing reduced by 25%. This does not stack with similar Auras.
PASSIVE - Whenever you take Magical Damage from an enemy ability you unleash a shockwave that Silences all enemies within a range of 30 units for 1s. This effect cannot trigger more than once every 30s.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
PASSIVE - Killing an enemy god forges a shield from their blood with Health equal to 200 + 10 per Player Level for 20s. While the Blood Shield is active you gain +10% movement speed.
PASSIVE - Your Critical Hits provide you with 10% Physical Penetration for 4s.
PASSIVE - While below 60% Health, you gain an additional 15% Physical Lifesteal for 5 seconds. Can only occur once every 15 seconds.
PASSIVE - Critical Strike bonus damage dealt is increased by 25%.
PASSIVE - For every non-ultimate ability on cooldown you gain a stack of Cruelty. Each stack provides 7 Physical Power and 2% Physical Lifesteal.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
PASSIVE - Killing or getting an assist on an enemy god gives you 1 stack. Each stack provides 2% Critical Strike Chance and 3 Physical Power. Stacks are permanent and stack up to 5 times.
PASSIVE - Killing an enemy god forges a shield from their blood with Health equal to 200 + 10 per Player Level for 20s. While the Blood Shield is active you gain +10% movement speed.
PASSIVE - When damaging an enemy god with a Basic Attack, gain 3% Attack Speed for 10s. Max 5 stacks
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item increases the Movement Speed of allied gods within 55 units by 20% for 5s and makes them immune to Slows. Cooldown - 130s
PASSIVE - If you are hit by a Knockup, Knockback, Pull, or Grab you gain 7% of your max Health over the next 5 seconds. You gain 15 Physical Power and 25 Magical Power while this effect is not on cooldown. This effect does not trigger on Vortexes. Can only occur once every 15s. PASSIVE - Regenerates 0.4% of your max health every second.
AURA - Allied gods within 70 units have their Magical Protections increased by 15 and their MP5 increased by 30. <n>GLYPH - You gain Magical Protections equal to 15% of your Physical Protections.
AURA - Allied gods within 70 units have their Physical Protections increased by 15 and their HP5 increased by 25.
PASSIVE - Your relics receive 50s Cooldown Reduction
PASSIVE - After healing yourself from an ability, you gain 30% movement speed, 15 Physical Power, and 30 Magical Power for 4 seconds. This cannot occur more than once every 10 seconds.
PASSIVE - Enemies that successfully land a basic attack on you have their Movement Speed and Attack Speed reduced by 8% for 3 seconds. This effect can stack up to 4 times and can stack with other item slow effects.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item Slows the Movement Speed of all enemy gods within 35 units by 30% for 5s. Their Attack Speed is reduced by 25% for the duration. Additionally, their Damage Dealt is reduced by 10%. Cooldown - 130s.
PASSIVE - While over 75% Health, you gain +25 Physical Power. While under 75% Health, you gain +40 Protections.
AURA - Enemy gods within 55 units have their Magical Power reduced by 50.
PASSIVE - You gain an additional 15% Damage Mitigation for 3s whenever you are hit with a hard Crowd Control Effect or Root. This can only occur once every 15 seconds.
AURA - ALL enemies within 25 units are dealt 20 (+1.5 Per Level) Magical Damage per second.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item Slows the Movement Speed of all enemy gods within 35 units by 30% for 5s. Their Attack Speed is reduced by 25% for the duration. Additionally, their Damage Dealt is reduced by 10%. Cooldown - 130s.
Using this item allows you to teleport to any allied structure while Rooted in place. This effect is not interrupted by damage but is interrupted by hard Crowd Control. Cooldown - 220s.
PASSIVE - Every 8 seconds you gain a block stack if you have at least 80 total Protections from items and abilities, preventing 65% of the next Basic Attack's damage. For each additional 80 total Protections from items and abilities the max. stacks increases, up to a cap of 3.
AURA - Enemy gods within 55 units have their healing reduced by 25%. This does not stack with similar Auras.
PASSIVE - On Basic Attack hits, deal Physical Damage equal to 1.5% of the target's maximum Health. If the target has over 2000 Health, the bonus damage scales up. This effect reaches a maximum of 6% of the targets Maximum Health at 2750 Health.
PASSIVE - If you take damage below 40% health you unleash a shockwave that stuns all enemies within a range of 20 units for 1s and become immune to Crowd Control for 1s. This effect cannot trigger more than once every 110s.
PASSIVE - While over 75% Health, you gain +25 Physical Power. While under 75% Health, you gain +40 Protections.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
Using this item reflects 30% of all damage you take, before mitigations, for the next 5 seconds, back to its owner as Magical Damage. If you are dealt 120 * your level damage while this effect is active, the effect will end early. While this is active enemies can only lifesteal from you for 75% of their total lifesteal. Cooldown - 120s.
PASSIVE - When you take Magical Damage from Abilities your cooldowns are reduced by 3s. This can only occur once every 30s.
PASSIVE - On Basic Attack hits, deal Physical Damage equal to 1.5% of the target's maximum Health. If the target has over 2000 Health, the bonus damage scales up. This effect reaches a maximum of 6% of the targets Maximum Health at 2750 Health.
AURA - Allied gods within 70 units have their Attack Speed increased by 30%.
PASSIVE - You gain an additional 15% Damage Mitigation for 3s whenever you are hit with a hard Crowd Control Effect or Root. This can only occur once every 15 seconds.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item Slows the Movement Speed of all enemy gods within 35 units by 30% for 5s. Their Attack Speed is reduced by 25% for the duration. Additionally, their Damage Dealt is reduced by 10%. Cooldown - 130s.
PASSIVE - Your Healing obtained from Magical Lifesteal is increased by 15%. Your Magical power is increased by 1.5x the amount of Magical Lifesteal you have.
PASSIVE - You gain an additional 15% Damage Mitigation for 3s whenever you are hit with a hard Crowd Control Effect or Root. This can only occur once every 15 seconds.
PASSIVE - Whenever you damage an enemy god with an ability you steal 8% maximum mana as well as 6% maximum health from the target. The Stats remain stolen for 60s and targets affected can have up to 4 Buffs and Debuffs at once. This can only occur once every 15 seconds.
PASSIVE - When your ultimate ability has finished casting you gain Myrddin's Rage which provides 15% Increased Damage Dealt decaying over 8s. At the end of the 8s you lose Myrddin's Rage. This can only occur once every 45s.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
PASSIVE - Every 10s the Pendant activates, subtracting 1s from all of your abilities currently on Cooldown. The initial countdown will not start until you leave the fountain.
PASSIVE - If you receive a kill or assist on an Enemy God all of your non-ultimate cooldowns are reduced by 2 seconds and your ultimate cooldown is reduced by 6 seconds.
PASSIVE - On successful hit of an Ability you gain 1 stack. At 3 Stacks your next Ability that damages an enemy God will deal bonus damage equal to 20% of your Magical power to each God hit, and will heal yourself and allies within 20 units for 15 (+5 Per Level) and will consume the 3 stacks.
PASSIVE - Your abilities deal an additional 1% of the target's maximum Health as Magical Damage. If the target has over 2000 Health, your ability bonus damage scales up. This effect reaches a maximum of 9% Maximum Health damage at 2750 Health. Subsequent hits on the same target do half the bonus damage for the next 3s.
PASSIVE - Basic Attacks and Abilities gain 15% additional Magical Power against targets below 60% Health.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
PASSIVE - Upon getting a kill or assist on an Enemy god you gain Atalanta's Agility for 10s. This effect increases your Attack Speed by 20% and decreases the Movement Penalty for attacking, backpedaling, and strafing by 30%.
PASSIVE - While below 60% Health, you gain an additional 15% Physical Lifesteal for 5 seconds. Can only occur once every 15 seconds.
PASSIVE - Your Critical Hits provide you with 10% Physical Penetration for 4s.
PASSIVE - Critical Strike bonus damage dealt is increased by 25%.
PASSIVE - Your first ability cast gains 20% Physical Penetration. This can only occur once every 5 seconds.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
PASSIVE - You gain Physical Power equal to 2% of your Maximum Mana.
PASSIVE - While below 60% Health, you gain an additional 15% Physical Lifesteal for 5 seconds. Can only occur once every 15 seconds.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
PASSIVE - Hitting an enemy with a Basic Attack restores 2 Health (+0.3% of your Maximum Health) and 1 Mana (+1% of your Maximum Mana). Basic Attacks that deal damage in an AoE restore less health (75% for Melee Attacks, 50% for Ranged Attacks) for each enemy hit after the first. Can be upgraded at level 20.
PASSIVE - While below 60% Health, you gain an additional 15% Physical Lifesteal for 5 seconds. Can only occur once every 15 seconds.
PASSIVE - On Basic Attack hits, deal Physical Damage equal to 1.5% of the target's maximum Health. If the target has over 2000 Health, the bonus damage scales up. This effect reaches a maximum of 6% of the targets Maximum Health at 2750 Health.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
PASSIVE - For 8s after using an ability, your next Basic Attack will deal an additional 25% damage. Abilities that function like basic attacks do not benefit from this. PASSIVE - This item grants 2.5 MP5 per 10% of your missing Mana.
AURA - Enemies within 55 units have their Attack Speed reduced by 25%.
PASSIVE - Your first ability cast gains 20% Physical Penetration. This can only occur once every 5 seconds.
PASSIVE - Basic Attacks against an enemy reduce your target's Physical Protection by 7% for 3 seconds (max. 4 Stacks).
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
PASSIVE - Upon getting a kill or assist on an Enemy god you gain Atalanta's Agility for 10s. This effect increases your Attack Speed by 20% and decreases the Movement Penalty for attacking, backpedaling, and strafing by 30%.
PASSIVE - Basic Attacks against an enemy reduce your target's Physical Protection by 7% for 3 seconds (max. 4 Stacks).
PASSIVE - Every fourth Basic Attack triggers a chain lightning, damaging the target and up to 4 nearby enemies for 15 damage +60% of your total Basic Attack Power.
PASSIVE - On damaging an enemy god with a Basic Attack, gain 2 Physical Pen for 5s, stacks up to 3 times.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
PASSIVE - You gain Physical Power equal to 2% of your Maximum Mana.
PASSIVE - While below 60% Health, you gain an additional 15% Physical Lifesteal for 5 seconds. Can only occur once every 15 seconds.
PASSIVE - Basic Attacks against an enemy reduce your target's Physical Protection by 7% for 3 seconds (max. 4 Stacks). GLYPH - Your next basic attack marks an enemy god for 8s. If you hit the marked enemy or the marked enemy hits you with a basic attack or ability, gain 1 stack. Each stack provides 2% increased damage towards the marked enemy, stacking up to 10 times. This effect can only occur every 30s.
PASSIVE - Your Critical Hits provide you with 10% Physical Penetration for 4s.
PASSIVE - On Basic Attack hits, deal Physical Damage equal to 1.5% of the target's maximum Health. If the target has over 2000 Health, the bonus damage scales up. This effect reaches a maximum of 6% of the targets Maximum Health at 2750 Health.
PASSIVE - Upon getting a kill or assist on an Enemy god you gain Atalanta's Agility for 10s. This effect increases your Attack Speed by 20% and decreases the Movement Penalty for attacking, backpedaling, and strafing by 30%.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item will allow you to teleport up to 45 units away instantly. This item can not be used if you have taken or dealt damage in the last 3s. Cooldown - 140s.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
PASSIVE - Your Healing obtained from Magical Lifesteal is increased by 15%. Your Magical power is increased by 1.5x the amount of Magical Lifesteal you have.
PASSIVE - Whenever you damage an enemy god with an ability you mark them to take 5% increased damage from all sources. This effect lasts for 8s and can only occur once every 15s.
PASSIVE - If you receive a kill or assist on an Enemy God all of your non-ultimate cooldowns are reduced by 2 seconds and your ultimate cooldown is reduced by 6 seconds.
PASSIVE - Every 10s the Pendant activates, subtracting 1s from all of your abilities currently on Cooldown. The initial countdown will not start until you leave the fountain.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item will allow you to teleport up to 45 units away instantly. This item can not be used if you have taken or dealt damage in the last 3s. Cooldown - 140s.
AURA - Allied gods within 70 units have their Physical Protections increased by 15 and their HP5 increased by 25.
AURA - Enemy gods within 55 units have their Magical Protection reduced by 10%.
AURA - Allies within 70 units receive 10 Physical Protection and 10 Magical Protection.
PASSIVE - When your Ultimate ability has finished casting, you gain a Shield equal to 90% of your Protections from items and abilities for 5s. When destroyed, by timing out or being depleted, it explodes in a 30 unit radius and deals Magical damage equal to 75% of your Protections from items and abilities and slows targets by 25% for 3s. This can only occur once every 45 seconds.
PASSIVE - Every 8 seconds you gain a block stack if you have at least 80 total Protections from items and abilities, preventing 65% of the next Basic Attack's damage. For each additional 80 total Protections from items and abilities the max. stacks increases, up to a cap of 3.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item will allow you to teleport up to 45 units away instantly. This item can not be used if you have taken or dealt damage in the last 3s. Cooldown - 140s.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
PASSIVE - Your Healing obtained from Magical Lifesteal is increased by 15%. Your Magical power is increased by 1.5x the amount of Magical Lifesteal you have.
PASSIVE - On damaging an enemy god, once per ability, gain 2 Magical Pen for 10s, stacks up to 3 times.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Using this item removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
Using this item makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
PASSIVE - You gain Physical Power equal to 2% of your Maximum Mana.
PASSIVE - While below 60% Health, you gain an additional 15% Physical Lifesteal for 5 seconds. Can only occur once every 15 seconds.
PASSIVE - Your Critical Hits provide you with 10% Physical Penetration for 4s.
PASSIVE - You gain Physical Power equal to 2% of your Maximum Mana.
PASSIVE - Basic Attacks against an enemy reduce your target's Physical Protection by 7% for 3 seconds (max. 4 Stacks).
PASSIVE - While below 60% Health, you gain an additional 15% Physical Lifesteal for 5 seconds. Can only occur once every 15 seconds.
PASSIVE - On Basic Attack hits, deal Physical Damage equal to 1.5% of the target's maximum Health. If the target has over 2000 Health, the bonus damage scales up. This effect reaches a maximum of 6% of the targets Maximum Health at 2750 Health.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
PASSIVE - On Basic Attack hits, deal Physical Damage equal to 1.5% of the target's maximum Health. If the target has over 2000 Health, the bonus damage scales up. This effect reaches a maximum of 6% of the targets Maximum Health at 2750 Health.
PASSIVE - Enemies hit by your Critical Strikes have 40% reduced healing for 5s.
PASSIVE - Basic Attacks against an enemy reduce your target's Physical Protection by 7% for 3 seconds (max. 4 Stacks).
PASSIVE - Critical Strike bonus damage dealt is increased by 25%.
PASSIVE - While below 60% Health, you gain an additional 15% Physical Lifesteal for 5 seconds. Can only occur once every 15 seconds.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
PASSIVE - Your abilities deal an additional 2% of the targets maximum Health as Physical Damage. If you have over 150 Physical Power, your ability bonus damage scales up. This effect reaches a maximum of 6% Maximum Health damage at 250 Physical Power. Subsequent hits on the same target do 75% of the bonus damage for the next 3s.
PASSIVE - You gain Physical Power equal to 2% of your Maximum Mana.
PASSIVE - You gain +20% additional Movement Speed after leaving the Fountain. This effect lasts 7s.
PASSIVE - For 8s after using an ability, your next Basic Attack will deal an additional 25% damage. Abilities that function like basic attacks do not benefit from this. PASSIVE - This item grants 2.5 MP5 per 10% of your missing Mana.
PASSIVE - When your Ultimate ability has finished casting, reveal all enemy gods within 120 units for 10s. While moving towards revealed enemies gain 20% Movement Speed. When first striking a revealed target they take an additional 30 + 50% of your Physical Power. This can only occur once every 45 seconds.
This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
PASSIVE - Hitting an enemy with a Basic Attack grants Haste for 1s, causing you to be immune from Basic Attack Movement Penalty.
PASSIVE - Critical Strike bonus damage dealt is increased by 25%.
PASSIVE - Enemies hit by your Critical Strikes have 40% reduced healing for 5s.