Jolly Litwick

Memento — {t}, Sacrifice Jolly Litwick: Target creature an opponent controls gets -2/-2 until
end of turn.
Flame Body — Whenever Jolly Litwick is dealt
combat damage by a creature, it deals damage
equal to its toughness to that creature.
It feeds off the life energy of people and Pokemon, and
uses it as fuel for the flames on its head.