Constellation — Whenever Calix, Guided by Fate or another enchantment enters the battlefield under your control, put a +1/+1 counter on target creature.

Whenever Calix or an enchanted creature you control deals combat damage to a player, you may create a token that's a copy of a nonlegendary enchantment you control. Do this only once each turn.

Flash

Polymorphine — You may have Callidus Assassin enter the battlefield tapped as a copy of any creature on the battlefield, except it has "When this creature enters the battlefield, destroy up to one other target creature with the same name as this creature."

Whenever you cast a Spirit or Arcane spell, you may put a ki counter on Callow Jushi.

At the beginning of the end step, if there are two or more ki counters on Callow Jushi, you may flip it.

Coven — At the beginning of combat on your turn, if you control three or more creatures with different powers, Candlegrove Witch gains flying until end of turn.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Horsemanship (This creature can't be blocked except by creatures with horsemanship.)

When Cao Ren, Wei Commander enters the battlefield, you lose 3 life.

First strike (This creature deals combat damage before creatures without first strike.)

: Capashen Knight gets +1/+0 until end of turn.

: Capricious Sorcerer deals 1 damage to any target. Activate only during your turn, before attackers are declared.

Haste

Whenever Captain Lannery Storm attacks, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Whenever you sacrifice a Treasure, Captain Lannery Storm gets +1/+0 until end of turn.

Vigilance (Attacking doesn't cause this creature to tap.)

Other Soldier creatures you control get +1/+1 and have vigilance.

When Captain of the Watch enters the battlefield, create three 1/1 white Soldier creature tokens.

At the beginning of combat on your turn, choose target nonland permanent you control. Until end of turn, it becomes a Vehicle artifact with base power and toughness each equal to its mana value, and it gains crew 2 and "Crash Land — Whenever this Vehicle deals damage, roll a six-sided die. If the result is equal to this Vehicle's mana value, sacrifice this Vehicle, then it deals that much damage to any target."

: Search your library for a legendary card, reveal that card, put it into your hand, then shuffle.

: Gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn. Activate only as a sorcery.

, Sacrifice a creature: Prevent the next 1 damage that would be dealt to any target this turn.

Whenever Carth the Lion enters the battlefield or a planeswalker you control dies, look at the top seven cards of your library. You may reveal a planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Planeswalkers' loyalty abilities you activate cost an additional +1 to activate.

When Case File Auditor enters the battlefield and whenever you solve a Case, look at the top six cards of your library. You may reveal an enchantment card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

You may spend mana as though it were mana of any color to cast Case spells.

Tap five untapped Soldiers you control: Exile target creature.

, : Search your library for a Mercenary permanent card with mana value 3 or less, put it onto the battlefield, then shuffle.

Flash

, Sacrifice Cathar Commando: Destroy target artifact or enchantment.

Each creature you control with a counter on it has ward . (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

: Put a +1/+1 counter on target creature that entered the battlefield this turn.

First strike, reach

Whenever Catti-brie of Mithral Hall attacks, put a +1/+1 counter on it for each Equipment attached to it.

, Remove all +1/+1 counters from Catti-brie: It deals X damage to target attacking or blocking creature an opponent controls, where X is the number of counters removed this way.

Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)

Other creatures you control with flanking have flanking. (Each instance of flanking triggers separately.)

Trample

When Caves of Chaos Adventurer enters the battlefield, you take the initiative.

Whenever Caves of Chaos Adventurer attacks, exile the top card of your library. If you've completed a dungeon, you may play that card this turn without paying its mana cost. Otherwise, you may play that card this turn.

, : Tap target creature. Activate only if you control a creature with flying.

Flying, lifelink

Healing Tears — At the beginning of your end step, return target creature card with mana value X or less from your graveyard to the battlefield, where X is the amount of life you gained this turn.

Flash

When Cemetery Protector enters the battlefield, exile a card from a graveyard.

Whenever you play a land or cast a spell, if it shares a card type with the exiled card, create a 1/1 white Human creature token.

All Nightmares get +1/+1.

, Pay 3 life: Put target creature card from a graveyard onto the battlefield under your control. That creature is black and is a Nightmare in addition to its other creature types.

When Chainer, Dementia Master leaves the battlefield, exile all Nightmares.

Partner with Chakram Retriever (When this creature enters the battlefield, target player may put Chakram Retriever into their hand from their library, then shuffle.)

, : Chakram Slinger deals 2 damage to target player or planeswalker.

Creatures with power less than Champion of Lambholt's power can't block creatures you control.

Whenever another creature enters the battlefield under your control, put a +1/+1 counter on Champion of Lambholt.

Whenever another Human enters the battlefield under your control, put a +1/+1 counter on Champion of the Parish.

, : Destroy target artifact creature.

When Channeler Initiate enters the battlefield, put three -1/-1 counters on target creature you control.

, Remove a -1/-1 counter from Channeler Initiate: Add one mana of any color.

: Exile the top card of your library. If that card is a land card, Chaos Harlequin gets -4/-0 until end of turn. Otherwise, Chaos Harlequin gets +2/+0 until end of turn.

First strike

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Whenever Charging Hooligan attacks, it gets +1/+0 until end of turn for each attacking creature. If a Rat is attacking, Charging Hooligan gains trample until end of turn.

Lifelink

When Charming Prince enters the battlefield, choose one —

• Scry 2.

• You gain 3 life.

• Exile another target creature you own. Return it to the battlefield under your control at the beginning of the next end step.

, : Tap target creature.

Other Warrior creatures you control get +1/+0.

Whenever Chieftain en-Dal attacks, attacking creatures gain first strike until end of turn.

Sacrifice Children of Korlis: You gain life equal to the life you've lost this turn. (Damage causes loss of life.)

, , Discard a card: The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way.

Prevent all damage that would be dealt to Cho-Manno, Revolutionary.

, Tap an untapped Vampire you control: Transform Chosen of Markov.

Vigilance

Whenever you cast a creature spell, draw a card, then you may put a land card from your hand onto the battlefield.

, : Return target creature you control to its owner's hand.

Vigilance

Formidable — : Add . Activate only if creatures you control have total power 8 or greater.

Whenever you cast a blue spell, exile the top card of target player's library.

Whenever you cast a black spell, exile the top card of target player's library.

Your opponents can't cast spells with the same name as a card exiled with Circu, Dimir Lobotomist.

Whenever an opponent casts an artifact spell, put a +1/+1 counter on Citanul Druid.

Kicker (You may pay an additional as you cast this spell.)

When Citanul Woodreaders enters the battlefield, if it was kicked, draw two cards.

, : Target creature gets +0/+1 until end of turn.

, : Put target creature you control on top of its owner's library.