Bant Control is loaded with Force of Will, Force of Negation, Spell Pierce, and Leyline Binding, making single-target reanimation risky, so Show and Tell lets you dump Griselbrand or Atraxa onto the battlefield in one shot, though be aware Force of Will can still counter Show and Tell itself for free, while Force of Negation requires full mana since its alternate cost cannot be used on your turn. Unmask is cut since the card disadvantage of pitching a black card hurts while their deck is full of interchangeable card-advantage engines (Up the Beanstalk, Quantum Riddler, Ponder) rather than one crucial spell to strip. Keep your discard suite (Thoughtseize, Cabal Therapy) to fight through their countermagic before committing threats, since resolving a reanimation spell is the main obstacle in this matchup.