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 - Killing an enemy god or minion gives you stacks of +.4 Physical Power, +.2 Physical Penetration and +.1% Physical Lifesteal. You receive 5 stacks for a god kill and 1 stack for a minion kill. At 50 stacks this item Evolves, gaining 5 Physical Penetration.
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 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.
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.