Crescent Grove's Carbuncle

Magecraft — Whenever you cast or copy an
instant or sorcery spell, this creature deals 1 damage
to target creature an opponent controls.

When this creature dies, exile it with six time
counters on it and it gains suspend. (At the
beginning of its owner’s upkeep, they remove a time
counter. When the last is removed, they may cast this
card without paying its mana cost. It has haste.)