Keeper of the Sacred Word 
Creature — Human Druid
As this creature enters, choose a word. Whenever an opponent says the chosen word, this creature gets +3/+3 until end of turn.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL