Thoughtbound Phantasm 
Creature — Spirit
Defender Whenever you surveil, put a +1/+1 counter on this creature. As long as this creature has three or more +1/+1 counters on it, it can attack as though it didn't have defender.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL