Vi Ability (LoL): Vault Breaker
Vault Breaker Vi
Q

Range: 250
/ 715
Cooldown: 12
/ 10.5
/ 9
/ 7.5
/ 6
Cost: 50
/ 60
/ 70
/ 80
/ 90
RECAST: Vi dashes in the target direction, dealing 55 / 80 / 105 / 130 / 155 (+0.7 of attack damage) physical damage to all enemies she passes through, increased by 0−100% (depending on channel time).
Vi stops upon colliding with an enemy champion, knocking them back while non-champion enemies in her path are instead pulled towards her. Vault Breaker will go on a 3-second cooldown if the charge is canceled.
Why isn't the mana partially refunded like Varus?
Because she isn't Varus.