You may cast target instant or sorcery card from your graveyard this turn. If that spell would be put into your graveyard, exile it instead.

Whenever an opponent sacrifices a permanent, put a +1/+1 counter on Callous Tactician and that player loses 1 life.
{3}{B}: Each player sacrifices a creature.

Whenever a creature you control dies during your turn, you may exile the top card of your library. You may play that card until you exile another card with Campaign of Retribution.

You may cast creature spells as though they had flash.
At the beginning of your end step, you may shuffle a creature you control into its owner's library. If you do, draw a card, then untap up to two lands.

Whenever you attack, you may cast an Aura card or a Blessing from your graveyard if that spell targets an attacking creature.

Target creature you control gets +2/+0 and gains lifelink until end of turn. When that creature dies this turn, draw a card.

Flying
When Caravan Skyrider enters, you may return another permanent you control to its owner's hand.

When Cardboard Box enters, draw a card.
Spells that target you cost {2} more to cast.
{T}, Sacrifice Cardboard Box: Untap target creature that's attacking you and remove it from combat.

Corrupt — When this creature enters, mill three cards. If you control a permanent with greater mana value than this creature, you may cache a creature card from your graveyard.

Deathtouch
When Carrion Viper enters, you may discard a card. When you do, return target creature card from your graveyard to your hand.

When this creature dies, create a black Subroutine enchantment token named TICK with “Whenever this Subroutine runs, each opponent loses 1 life and you gain 1 life.”
{1}{B}: Return this card from your graveyard to the battlefield tapped. Activate only if a card left your graveyard this turn.

The owner of target artifact or enchantment an opponent controls shuffles it into their library. You may shuffle up to four target cards from your graveyard into your library.

As an additional cost to cast this spell, discard two cards.
Draw three cards.

When Catscratch Broker enters, each opponent sacrifices an enchantment.

When Cawyer Station Veteran dies, you may put a +1/+1 counter on target creature you control.

As an additional cost to cast this spell, exile X creature cards from your graveyard.
Each opponent sacrifices a creature with toughness X or greater.

{3}{G}{W}: Champion of the Many gets +X/+X and gains trample until end of turn, where X is the number of creatures you control.

Choose one —
• Return target artifact or enchantment card from your graveyard to your hand.
• Destroy target artifact or enchantment.

{3}{W}, Exile Charging Brightmare from your graveyard: Bless target creature. Activate only as a sorcery.

Teach target creature you control lifelink. It fights up to one target creature you don't control.

Amity — When you cast this spell, copy it if you attacked with exactly two creatures this turn. You may choose new targets for the copy.
Target creature you control gets +2/+2 until end of turn. Untap it.

Trample
Approval — Chromagoyf's power and toughness are each equal to the number of colors among permanents you control.

When Chromatic Shard enters, draw a card.
{T}, Sacrifice Chromatic Shard: Add one mana of any color.

Cinder Hatchling gets +3/+0 as long as you've cast an instant or sorcery spell with mana value 4 or greater this turn.

Cinderhorn Calf can't block
{1}{R}: Cinderhorn Calf gains menace until end of turn.