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 critically striking an enemy, gain a stack of 5 Physical Power, max 3 stacks, for 5s.
Using this item fires a bolt that travels 70 units, stopping on the first god hit dealing 15% of the target's Current Health as True Damage and destroying any shields. Cooldown - 110s.