Lissandra, the Ice Witch

Mage (This creature enters the battlefield with an AP
counter on it. {2}, {t}: This creature deals damage
equal to the number of AP counters on it to target
creature you don't control. Activate this ability only
during a combat phase.)
{t}: Tap target creature, then you may return
Lissandra to your hand. If you do, draw a card.
"I will bury the world in ice."