Knight in _____ Armor 

Creature — Human Knight Performer
First strike As this creature enters, you may put a name sticker on it. This creature has protection from names that start with the same letter as a name sticker on it.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL