Every third attack on the same target deals additional physical damage equal to 2% - 8% (based on level) of the target's maximum health (capped at 300 against minions and monsters), reduces the target's Armor by 25%, and grants 30% - 60% (based on level) of bonus Attack Speed for 4 seconds.
First Cast:Vi begins channeling, increasing the damage and range of Vault Breaker over 1.25 seconds. Vi can still move while channeling, but she cannot attack or use her other abilities, and her movement speed is slowed by 15%.
Second Cast:Vi dashes towards the cursor's location, dealing physical damage and applying Denting Blows to all enemies hit (75% damage against minions and monsters).
Active:Vi empowers his next basic ability, also making it free to cast. Empowered abilities share the same cooldown as their basic form.
After Vi has had Overcharge active for 3 seconds without using another ability, he can reactivate it to cancel the empowerment and put Overcharge on a 3 second static cooldown. Overcharge will only go on its normal cooldown if Vi uses an empowered ability.