Rat in the Hat 
Creature — Rat Rogue
, Sacrifice this creature: Until end of turn, you may cast target creature card that has a hat from your graveyard.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL