Choose one — Destroy target blue permanent; or return target Island to its owner's hand.
Destroy target creature. It can't be regenerated. Its controller puts a 1/1 white Spirit creature token with flying onto the battlefield.
Flying
You gain X plus 1 life, where X is the number of green creatures on the battlefield.
Counter target artifact or enchantment spell.
Each player can't cast more than one spell each turn.
Attacking creatures get +2/+0 until end of turn.
Destroy X target snow lands.
Morph (You may cast this face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When Aven Liberator is turned face up, target creature you control gains protection from the color of your choice until end of turn.
Choose a player who cast one or more sorcery spells this turn. Backdraft deals damage to that player equal to half the damage dealt by one of those sorcery spells this turn, rounded down.
Enchant creature
Whenever enchanted creature deals damage to you, Backfire deals that much damage to that creature's controller.
When Balduvian Horde enters the battlefield, sacrifice it unless you discard a card at random.
Green creatures you control get +1/+1 until end of turn.
Nongreen creatures you control get +1/+0 until end of turn.
: Add to your mana pool.
: Blinkmoth Nexus becomes a 1/1 Blinkmoth artifact creature with flying until end of turn. It's still a land.
, : Target Blinkmoth creature gets +1/+1 until end of turn.
, Sacrifice a land: Search your library for a Mercenary permanent card with converted mana cost 2 or less and put it onto the battlefield. Then shuffle your library.
Bog Wreckage enters the battlefield tapped.
, Sacrifice Bog Wreckage: Add one mana of any color to your mana pool.
Return target permanent to its owner's hand.
: Put a bounty counter on target nonblack creature.
: Destroy target creature with a bounty counter on it.
At the beginning of your upkeep, Bulwark deals X damage to target opponent, where X is the number of cards in your hand minus the number of cards in that player's hand.
Whenever a creature enters the battlefield, you lose 1 life and add to your mana pool.
Carrion Feeder can't block.
Sacrifice a creature: Put a +1/+1 counter on Carrion Feeder.
Tap two untapped Soldiers you control: Catapult Squad deals 2 damage to target attacking or blocking creature.
First strike
At the beginning of your upkeep, target opponent gains control of Chaos Lord if the number of permanents is even.
Chaos Lord can attack as though it had haste unless it entered the battlefield this turn.
As an additional cost to cast Chill Haunting, exile X creature cards from your graveyard.
Target creature gets -X/-X until end of turn.
, , Sacrifice Chromatic Sphere: Add one mana of any color to your mana pool. Draw a card.
(You may cast this face down as a 2/2 creature for . Turn it face up any time for its morph cost.)