Blazing Bomb

Creature — Elemental

{R}

Whenever you cast a noncreature spell, if at least four mana was spent to cast it, put a +1/+1 counter on this creature. Blow Up — {T}, Sacrifice this creature: It deals damage equal to its power to target creature. Activate only as a sorcery.

1/1

Rulings and every printing on Scryfall