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.
Reduce the damage you take by 20% for 3s after activating Tendril.
Reduce the Cooldown of Dark Siphon by 1s if it fails to hit a target.
Reduce the damage you take by 10% for 2s after hitting an enemy with Dark Siphon.
Reduce the cooldown of Tendril by 1.2s.
Gain a 375 Shield for 5s after activating Tendril.