UB Reanimator wants to flip Archon of Cruelty, Griselbrand, or Atraxa, Grand Unifier into play via Reanimate, Animate Dead, or Shallow Grave, so Tormod's Crypt can exile their graveyard and strand those reanimation targets before they connect. The extra Force of Negation copies give us a free way to counter the reanimation spell itself on their turn, which is far more efficient than racing their huge reanimated bodies. We cut slow ramp artifacts since this matchup is often decided in the first few turns before they resolve a giant creature, and keeping our own The One Ring and Ugin intact lets us grind out a long game if we survive the early rush.