Thoughtbound Phantasm is a uncommon Creature — Spirit card from Murders at Karlov Manor Commander (MKC), collector number 122. Current market price: $0.24, TCGplayer market prices via Scryfall.
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.