Black Sun's Zenith

Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library.

River's Rebuke

Return all nonland permanents target player controls to their owner's hand.

Walk the Plank

Damnation

Destroy all creatures. They can't be regenerated.

Malicious Affliction

Morbid — When you cast this spell, if a creature died this turn, you may copy Malicious Affliction and may choose a new target for the copy.
Destroy target nonblack creature.