Labyrinth Adversary 

Creature — Minotaur
Trample (This creature can deal excess combat damage to the player it's attacking.)
Whenever you attack, you may pay . When you do, target creature can't block this turn.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL