- Max stacks
- 1
- Duration
- ∞
100% to gain one stack of Yi River when attacking or healing: Increases Physical Penetration by 2, Physical Damage and healing by 1% for 12 seconds, stacking up to 5 times. The chance to gain Yi River is only calculated once every 2 seconds. At max stacks, Yi River additionally attacks or heals the target for 1-2 times based on whether the target is under control. This effect can only trigger once every 10 seconds.