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 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 - 140s.
PASSIVE - Damaging an enemy god deals 25 (+1.5 per level) damage and restores 25 (+1.5 per level) Health and Mana. This effect can only occur once every 10s. Can be upgraded at level 20.
PASSIVE - When you take Magical Damage from Abilities your cooldowns are reduced by 3s. This can only occur once every 30s.
AURA - ALL enemies within 25 units are dealt 20 (+1.5 Per Level) Magical Damage per second.
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 - Each time you Basic Attack an enemy god, gain a stack. When you have 4 stacks, your next Basic Attack damage Slows the enemy god hit by 15% for 2s. Additional Slows applied from this item refresh the duration.
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.
AURA - Allies within 70 units receive 10 Physical Protection and 10 Magical Protection.
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.
PASSIVE - When you take Magical Damage from Abilities your cooldowns are reduced by 3s. This can only occur once every 30s.
AURA - Enemy gods within 55 units have their Magical Protection reduced by 10%.
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.
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.
PASSIVE - When you take Magical Damage from Abilities your cooldowns are reduced by 3s. This can only occur once every 30s.
PASSIVE - For each enemy god within 55 units of you, you gain a stacking buff that provides 10 Physical Protections and 8 Magical Protections. Stacks up to 3 times.
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.
PASSIVE - When you take damage and are below 40% Health, you gain a Shield with health equal to 12% of your Maximum Health for 20s. Can only occur once every 60s.
PASSIVE - Protects you from a single hard Crowd Control effect once every 70 seconds. When this occurs, you gain 1s of Crowd Control immunity.
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 - Getting a kill or assist on enemies causes you and allies within 70 units to gain stacks of energy. Energy stacks provide 3% Movement Speed, 3% Attack Speed, and 15MP5 per stack. Lasts 10s and stacks up to 4 times. Killing or Assisting an enemy God provides maximum stacks.
AURA - Enemy gods within 55 units have their healing reduced by 25%. This does not stack with similar Auras.
PASSIVE - When you take Magical Damage from Abilities your cooldowns are reduced by 3s. This can only occur once every 30s.
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.
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.
AURA - Enemy gods within 55 units have their Physical Protection reduced by 10%.
PASSIVE - When you take Magical Damage from Abilities your cooldowns are reduced by 3s. This can only occur 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 makes you invulnerable to damage and healing for 1.5s, and prevents you from taking any actions. You may still move. Cooldown - 170s.
PASSIVE - Enemies hit by your Basic Attacks are burned, taking 16 Physical Damage (+7% of your Physical and Magical Power) over 2s and have their Attack Speed reduced by 4.5%. Gods take 50% damage. Jungle Monsters take 4x the amount of damage and restore 2.5% Health and 5% Mana when they die. This effect can stack up to 3 times. Can be upgraded at level 20.
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 - 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 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 - 140s.
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.
PASSIVE - Provides a Health Shield that gains stacks every 2s. Shield only stacks if you have not taken or dealt damage in the last 5s. Each stack provides 10% of 100 Health +5 Per Level. The full shield will regenerate after 20 seconds.
PASSIVE - While below 60% Health you become Berserk for 5s. While Berserk, you gain 5% Damage Mitigation and 20% Attack Speed. This effect can only occur once every 15 seconds.
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 - For each enemy God within 55 units of you, you gain a stack of 4% Damage Mitigation. This caps at 3 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.
PASSIVE - On god kill or assist a coin is flipped. If heads, you gain 150 Health over 6 seconds. If tails, you gain 5% Movement Speed for 6 seconds. You also gain 15 gold every time the coin is flipped.
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 - You gain additional Magical Power and Lifesteal scaled from missing Health. This caps at 70 power and 10% Lifesteal at 40% Health.
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 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 - 140s.
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 Attack Speed increased by 30%.
PASSIVE - While over 25% Mana, you gain +10% Cooldown Reduction. While under 25% Mana, you gain +50 MP5.
AURA - Enemy gods within 55 units have their healing reduced by 25%. This does not stack with similar Auras.
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 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 - 140s.
AURA - You gain 8 GP5 if you have the lowest gold on your team. Evenly split 80 Physical and Magical Protection among all allied gods within 70 units and yourself. If you are alone you only gain 30 Physical and Magical Protections.
AURA - ALL enemies within 25 units are dealt 20 (+1.5 Per Level) Magical Damage per second.
AURA - Allies within 70 units receive 10 Physical Protection and 10 Magical Protection.
AURA - Enemy gods within 55 units have their Magical Protection reduced by 10%.
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.
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 - 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 - Enemies hit by your damaging abilities will move 30% Slower and will have Shields applied on them reduced by 50% for 2.5 seconds. This can only occur once every 2.5 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.
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 - Basic Attacks and Abilities gain 15% additional Magical Power against targets below 60% Health. <n>GLYPH - Successfully hitting an enemy god with an ability calls down a meteor that lands after 1s, dealing 100 (+35% of your Magical Power) damage in a 15 unit radius. This effect can only occur once every 15s.
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 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 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 - Your abilities heal you for 2.5% of damage dealt. Each time anything dies within 80 units you gain a stack. Gods, Large Jungle monsters and Bosses provide 5 stacks. At 100 Stacks Soul Eater Evolves, gaining 15 Physical Power, 4% Physical Lifesteal, and 10% Physical Ability 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 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 - 110s.
AURA - ALL enemies within 25 units are dealt 20 (+1.5 Per Level) Magical Damage per second.
AURA - Allies within 70 units receive 10 Physical Protection and 10 Magical Protection.
AURA - Enemy gods within 55 units have their Magical Protection reduced by 10%.
PASSIVE - Enemies hit by your damaging abilities will move 30% Slower and will have Shields applied on them reduced by 50% for 2.5 seconds. This can only occur once every 2.5 seconds.
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 - 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.
PASSIVE - While below 60% Health you become Berserk for 5s. While Berserk, you gain 5% Damage Mitigation and 20% Attack Speed. This effect can only occur once every 15 seconds.
PASSIVE - Melee Basic Attacks decreases enemy Physical protections by 7, and increase your physical protection by 5 for 3s (max. 2 Stacks).
PASSIVE - For each enemy God within 55 units of you, you gain a stack of 4% Damage Mitigation. This caps at 3 stacks.
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 - 140s.
PASSIVE - You gain Physical Power equal to 2% of your Maximum Mana.
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 - While below 60% Health, you gain an additional 15% Physical Lifesteal for 5 seconds. Can only occur once every 15 seconds.
PASSIVE - When your Ultimate ability has finished casting, your next ability or basic attack within 8s that damages an enemy god marks them, increasing the chance you and your allies can land a Critical Strike by 20% for 10 seconds. This can only occur once every 45 seconds.
PASSIVE - Your Critical Hits provide you with 10% Physical Penetration for 4s.
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.
PASSIVE - Your abilities heal you for 10% of the damage dealt to targets.
AURA - Enemy gods within 55 units have their Physical Protection reduced by 10%.
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.
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 - Protects you from a single hard Crowd Control effect once every 70 seconds. When this occurs, you gain 1s of Crowd Control immunity.
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.
PASSIVE - Enemies hit by your abilities have 40% reduced healing for 5 seconds.
PASSIVE - This item grants 2 MP5 per 10% of your missing Mana. Your damaging abilities deal an extra 15 true damage to minions. Can be upgraded at level 20.
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 removes Crowd Control Effects and makes you immune to new ones for 2s. Cooldown - 170s.
PASSIVE - Enemies hit by your abilities have 40% reduced healing for 5 seconds.
AURA - Enemy gods within 55 units have their Magical Protection reduced by 10%.
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 - 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 - 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.
PASSIVE - You gain Physical Power equal to 2% of your Maximum Mana.
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 - Your abilities heal you for 10% of the damage dealt to targets.
PASSIVE - While over 25% Mana, you gain +10% Cooldown Reduction. While under 25% Mana, you gain +50 MP5.
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.
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 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.
PASSIVE: When Ratatoskr deals damage to an enemy god with an ability he restores 6% of his Maximum Health and Mana.
PASSIVE - While over 25% Mana, you gain +10% Cooldown Reduction. While under 25% Mana, you gain +50 MP5.
AURA - Enemy gods within 55 units have their Physical Protection reduced by 10%.
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 - Provides a Health Shield that gains stacks every 2s. Shield only stacks if you have not taken or dealt damage in the last 5s. Each stack provides 10% of 100 Health +5 Per Level. The full shield will regenerate after 20 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.
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 - You gain additional Magical Power and Lifesteal scaled from missing Health. This caps at 70 power and 10% Lifesteal at 40% Health.
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.
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.
PASSIVE - Your abilities heal you for 10% of the damage dealt to targets.
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 - While over 25% Mana, you gain +10% Cooldown Reduction. While under 25% Mana, you gain +50 MP5.
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 applies a shield to himself and allies within 35 units for 100 Health + 12 Health per God Level for 3 seconds. Additionally, all allies take 20% reduced damage from Basic Attacks while the shield is active. Cooldown - 150s.
PASSIVE - You permanently gain 15 Mana per Stack, and receive 5 Stacks for a god kill, and 1 Stack for a minion kill (max. 50 stacks). You gain Physical Power equal to 2% of your Maximum Mana. At 50 stacks this item Evolves, gaining 10% Cooldown Reduction.
PASSIVE - You gain +3 Magical Protection and +3 Physical Protection for each god kill or assist. At 7 stacks this item Evolves, providing a Health Shield that gains stacks every 2s. Shield only stacks if you have not taken or dealt damage in the last 5s. Each stack provides 10% of 100 Health +5 Per Level.
PASSIVE - For each enemy god within 55 units of you, you gain a stacking buff that provides 10 Physical Protections and 8 Magical Protections. 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 applies a shield to himself and allies within 35 units for 100 Health + 12 Health per God Level for 3 seconds. Additionally, all allies take 20% reduced damage from Basic Attacks while the shield is active. Cooldown - 150s.
PASSIVE - You gain Physical Power equal to 2% of your Maximum Mana.
PASSIVE - Provides a Health Shield that gains stacks every 2s. Shield only stacks if you have not taken or dealt damage in the last 5s. Each stack provides 10% of 100 Health +5 Per Level. The full shield will regenerate after 20 seconds.
PASSIVE - For each enemy god within 55 units of you, you gain a stacking buff that provides 10 Physical Protections and 8 Magical Protections. Stacks up to 3 times.
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.
PASSIVE - You permanently gain 15 Mana per Stack, and receive 5 Stacks for a god kill, and 1 Stack for a minion kill (max. 50 stacks). You gain Physical Power equal to 2% of your Maximum Mana. At 50 stacks this item Evolves, gaining 10% Cooldown Reduction.
PASSIVE - You gain +3 Magical Protection and +3 Physical Protection for each god kill or assist. At 7 stacks this item Evolves, providing a Health Shield that gains stacks every 2s. Shield only stacks if you have not taken or dealt damage in the last 5s. Each stack provides 10% of 100 Health +5 Per Level.