This matchup is a race to assemble Reanimate, Animate Dead, or Shallow Grave into Griselbrand or Atraxa, Grand Unifier before we land Marit Lage, so Consign to Memory is excellent at countering the enters-the-battlefield triggers on Atraxa and Archon of Cruelty as well as any colorless spells they might cast. Prismatic Ending exiles their cheap enablers like Lotus Petal (mana value 0) or a resolved Animate Dead (mana value 2), which makes the reanimated creature get sacrificed. It can only hit permanents with mana value up to the number of colors we spend, so it can't touch the big reanimated threats themselves. Collector Ouphe shuts off Lotus Petal's activated ability, slowing one of their key fast-mana engines. We trim narrow or situational cards that are weak against a deck with few relevant creatures to fight in combat and whose main deck isn't attacking our graveyard, while keeping our full Wasteland and Dark Depths package intact since our clock and disruption are what actually race their reanimation plan. Swords to Plowshares remains our best answer to their reanimated threats, so we keep it at full count.