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 additional Magical Power and Lifesteal scaled from missing Health. This caps at 70 power and 10% Lifesteal at 40% Health.
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.