Manahive

Equivalent cards to “Memoricide” (black, exile/search hand/library/graveyard for a card name):

• “Cranial Extraction” (black, does nearly the same effect)
• “Lost Legacy” (black, only hits non-artifact, non-land cards)
• “Slaughter Games” (black/red, similar, can’t be countered, hits nonland)
• “Unmoored Ego” (blue/black, hits nonland)

All allow naming a card and exiling all copies from hand, graveyard, and library.