On kill or assist, Varus temporarily gains Attack Damage and Ability Power. This bonus is larger if the enemy is a champion.
Piercing Arrow
Varus readies and then fires a powerful shot that gains extra range and damage the longer he spends preparing to fire.
Blighted Quiver
Passive: Varus' basic attacks deal bonus magic damage and apply Blight. Varus' other abilities detonate Blight, dealing magic damage based on the target's maximum Health. Active: Varus empowers his next Piercing Arrow.
Hail of Arrows
Varus fires a hail of arrows that deal physical damage and desecrate the ground. Desecrated ground slows enemies' Move Speed and reduces their self healing and regeneration.
Chain of Corruption
Varus flings out a damaging tendril of corruption that immobilizes the first enemy champion hit and then spreads towards nearby uninfected champions, immobilizing them too on contact.