Harsh Mercy

Destroy all creatures with power 4 or greater. They can't be regenerated.

Destroy all creatures. They can't be regenerated.

Each player chooses a creature they control. Destroy the rest.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Each player who controls a creature with power 4 or greater draws a card. Then destroy all creatures.

Each player who controls a multicolored creature draws a card. Then destroy all creatures.

Each player chooses any number of creatures they control with total power 4 or less, then sacrifices all other creatures they control.