Spell Queller

Foudroyeur de sorts (Spell Queller) (fr)

Creature - Spirit | Power/Toughness: 2 / 3 (CMC 3)
Flash
Flying
When Spell Queller enters the battlefield, exile target spell with mana value 4 or less.
When Spell Queller leaves the battlefield, the exiled card's owner may cast that card without paying its mana cost.