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 your Ultimate ability has finished casting, your next non-ultimate ability cast within the next 10s will have no cooldown but will only deal 70% of its normal damage and healing. This can only occur once every 45 seconds.
PASSIVE - You gain Magical Power equal to 7% of your Mana from items.
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 - 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 - You permanently gain +1 Health and +0.6 Magical Power per Stack, and receive 5 Stacks for a god kill and 1 Stack per minion kill. At 75 stacks this item Evolves, gaining 10% Magical Penetration and 25 Health.