Landstill grinds with Standstill, counterspells, and Wrath of God, so Graveborn Muse's card draw is a liability since it both breaks Standstill's rule of restraint and dies outright to their sweepers. Plaguebearer can pick off small utility creatures or problematic X-cost threats they stick, while Powder Keg provides a way to answer Faerie Conclave or Mishra's Factory once animated at a low fuse count. Diabolic Edict is weak against a deck that's usually creature-light outside of their own Mishra's Factories, which can just be sacrificed as a non-threat. Keep Duress and Cabal Therapy as top priorities to strip counterspells and Standstill before they lock up the game, and use Withered Wretch to pressure Fact or Fiction piles sent to their graveyard.