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 god kill or assist a coin is flipped. If heads, you gain a stack of 7 HP5. If tails, you gain a stack of 2% Movement Speed. Each effect can stack up to 4 times and at 8 stacks this item evolves. You also gain 15 gold every time the coin is flipped.
AURA - Allies within 70 units receive 10 Physical Protection and 10 Magical Protection.
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 - You permanently gain 7 Mana per Stack, and receive 5 Stacks for a god kill and 1 Stack for a minion kill (max. 75 Stacks). You gain Magical Power equal to 4% of your Mana from items. At 75 stacks this item Evolves, gaining 10 Magical Penetration and Increasing the Magical Power gained from Mana to 7%.