Mutiny

Target creature an opponent controls deals damage equal to its power to another target creature that player controls.

Disposal Mummy

When Disposal Mummy enters the battlefield, exile target card from an opponent’s graveyard.

Whiplash Trap

If an opponent had two or more creatures enter the battlefield under their control this turn, you may pay rather than pay this spell’s mana cost.
Return two target creatures to their owners’ hands.

Boros Challenger

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)
: Boros Challenger gets +1/+1 until end of turn.

Hideous End

Destroy target nonblack creature. Its controller loses 2 life.

Aethersnipe

When Aethersnipe enters the battlefield, return target nonland permanent to its owner’s hand.
Evoke (You may cast this spell for its evoke cost. If you do, it’s sacrificed when it enters the battlefield.)

Mirror Entity

Changeling (This card is every creature type.)
: Until end of turn, creatures you control have base power and toughness X/X and gain all creature types.

Serra’s Embrace

Enchant creature
Enchanted creature gets +2/+2 and has flying and vigilance.

Elixir of Immortality

, : You gain 5 life. Shuffle Elixir of Immortality and your graveyard into their owner’s library.

Witch’s Cottage

(: Add .)
Witch’s Cottage enters the battlefield tapped unless you control three or more other Swamps.
When Witch’s Cottage enters the battlefield untapped, you may put target creature card from your graveyard on top of your library.

Magmaquake

Magmaquake deals X damage to each creature without flying and each planeswalker.

Goblin Ringleader

Haste (This creature can attack and as soon as it comes under your control.)
When Goblin Ringleader enters the battlefield, reveal the top four cards of your library. Put all Goblin cards revealed this way into your hand and the rest on the bottom of your library in any order.

Valiant Changeling

This spell costs less to cast for each creature type among creatures you control. This effect can’t reduce the amount of mana this spell costs by more than .
Changeling (This card is every creature type.)
Double strike

Defiant Strike

Target creature gets +1/+0 until end of turn.
Draw a card.

Rakdos the Defiler

Flying, trample
Whenever Rakdos the Defiler attacks, sacrifice half the non-Demon permanents you control, rounded up.
Whenever Rakdos deals combat damage to a player, that player sacrifices half the non-Demon permanents they control, rounded up.

Azorius Skyguard

Flying, first strike
Creatures your opponents control get -1/-0.

Civic Stalwart

When Civic Stalwart enters the battlefield, creatures you control get +1/+1 until end of turn.

Spatial Merging

When you encounter Spatial Merging, reveal cards from the top of your planar deck until you reveal two plane cards. Simultaneously planeswalk to both of them. Put all other cards revealed this way on the bottom of your planar deck in any order.

Isle of Vesuva

Whenever a nontoken creature enters the battlefield, its controller creates a token that’s a copy of that creature.
Whenever you roll , destroy target creature and all other creatures with the same name as that creature.

Naya

You may play any number of lands on each of your turns.
Whenever you roll , target red, green, or white creature you control gets +1/+1 until end of turn for each land you control.

Aethersnipe

When Aethersnipe enters the battlefield, return target nonland permanent to its owner’s hand.
Evoke (You may cast this spell for its evoke cost. If you do, it’s sacrificed when it enters the battlefield.)

Faithless Looting

Draw two cards, then discard two cards.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)