Loose Lips 
Enchantment — Aura
Enchant creature As this Aura enters, choose a sentence with eight or fewer words. Enchanted creature has flying. Whenever enchanted creature deals damage to an opponent, that player may say the chosen sentence. If they don't, you draw two cards.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL