Spright Carrot

Endless Engine — If you control another creature with converted mana cost 2, you may cast this creature without paying its mana cost. Activate only as a sorcery.

As an additional cost to use this ability, you may sacrifice one other creature you control with converted mana cost 2. Until end of turn, negate the effects of target
non-creature spell that was cast by an opponent this turn, then destroy it if you sacrificed a creature.

Activate each ability of Spright Carrot only once per t