Ahri, the Nine-Tailed Fox

Haste, hexproof
{u},{t}: Tap target creature you don't control and
put a -3/+0 counter on target creature.
{r},{t}: Deal 3 damage divided up to 3 different
targets.
If Ahri, the Nine-Tailed Fox kills a target, gain 3
life.
"Human emotions can be more volatile than even the deepest magic."—Ahri