+Purge (13)
As an additional cost to cast this spell, sacrifice a permanent.
Exile target artifact, creature, or enchantment.
Exile target black or red permanent.
Exile target card from a graveyard.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Flying
Whenever Crosis, the Purger deals combat damage to a player, you may pay . If you do, choose a color, then that player reveals their hand and discards all cards of that color.
Exile all artifacts and creatures with mana value 3 or less. They perpetually gain "This spell costs more to cast" and "This permanent enters the battlefield tapped." For as long as each of them remain exiled, its owner may play it.
Put any number of target creature cards from your graveyard on top of your library.
Draw a card.
Destroy target creature with mana value X. If that creature dies this way, Kaervek's Purge deals damage equal to the creature's power to the creature's controller.
This spell costs 3 life more to cast for each target.
Destroy any number of target creatures.
Psychic Purge deals 1 damage to any target.
When a spell or ability an opponent controls causes you to discard Psychic Purge, that player loses 5 life.
Destroy target artifact creature or black creature. It can't be regenerated.
Target opponent discards two cards and you gain 2 life.
Exile target multicolored creature or multicolored enchantment.
Return all permanents to their owners' hands. Each player chooses up to seven cards in their hand, then shuffles the rest into their library. Each player loses all unspent mana.
Gatherer works better in the Companion app!