Ahri, Nine-Tailed Spirit Fox

Flash, Ahri doesn't untap during the untap step.
{2}{w/u},{t}: Gain control of target creature while Ahri remains tapped. Controlled creature may only block.
When Ahri becomes untapped, destroy controlled creature and put 3 fox-fire counters on her.
{2}{u/r},{ut}: Return Ahri to her owners hand.
Remove a fox-fire counter: Ahri gains wither until
the end of turn and deals 1 damage to target
creature or player.