Labyrinth Adversary is a uncommon Creature — Minotaur card from Assassin's Creed (ACR), collector number 290. Current market price: $0.16, TCGplayer market prices via Scryfall.
Trample (This creature can deal excess combat damage to the player it's attacking.) Whenever you attack, you may pay {1}{R}. When you do, target creature can't block this turn.