Whenever Cave People attacks, it gets +1/-2 until end of turn.

, : Target creature gains mountainwalk until end of turn. (It can't be blocked as long as defending player controls a Mountain.)

Partner with Ukkima, Stalking Shadow (When this creature enters, target player may put Ukkima into their hand from their library, then shuffle.)

Whenever a creature you control deals combat damage to a player, put a +1/+1 counter on that creature.

Whenever you attack with one or more Elves, scry 1.

Whenever you scry, Celeborn the Wise gets +1/+1 until end of turn for each card looked at while scrying this way.

Search your library for up to X basic land cards, where X is the number of different powers among creatures you control. Put those cards onto the battlefield tapped, then shuffle.

Flying

Whenever you cast an enchantment spell, put a +1/+1 counter on each creature you control.

Celestial Colonnade enters tapped.

: Add or .

: Until end of turn, Celestial Colonnade becomes a 4/4 white and blue Elemental creature with flying and vigilance. It's still a land.

Flash

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Flying

Other white creatures get +1/+1.

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

At the beginning of each upkeep, you gain 3 life.

For each different power among creatures on the battlefield, choose a creature with that power. Destroy each creature not chosen this way.

Enchant creature

Enchanted creature gets +3/+3.

Whenever enchanted creature deals combat damage to a player, double its controller's life total.

, : Add one mana of any color.

Flying

When Celestial Regulator enters, choose target creature you don't control and tap it. If you control a creature with a counter on it, the chosen creature doesn't untap during its controller's next untap step.

Whenever you gain life, put a +1/+1 counter on Celestial Unicorn.

When CARDNAME enters the battlefield, create two 1/1 black Insect creature tokens.

Whenever CARDNAME attacks, you may sacrifice an Insect. When you do, curse defending player. (Create a black Aura Curse enchantment token that's attached to that player. It has enchant player and "At the beginning of your upkeep, you lose 1 life.")

If it's neither day nor night, it becomes day as Celestus Sanctifier enters.

Whenever day becomes night or night becomes day, look at the top two cards of your library. Put one of them into your graveyard.

Heroic — Whenever you cast a spell that targets Centaur Battlemaster, put three +1/+1 counters on Centaur Battlemaster.

When you unlock this door, search your library for a Room card that doesn't have the same name as a Room you control, reveal it, put it into your hand, then shuffle.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

Flying

Protection from red (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything red.)

Sacrifice Cerulean Drake: Counter target spell that targets you.

Target creature becomes blue until end of turn. Untap that creature.

Draw a card.

, : Target creature gets +2/+0 until end of turn.

, : Add one mana of any color.

If a player would draw a card except the first one they draw in each of their draw steps, that player discards a card instead. If the player discards a card this way, they draw a card. If the player doesn't discard a card this way, they mill a card.

Prevent all damage that creatures would deal to players this turn.

As Chameleon Spirit enters, choose a color.

Chameleon Spirit's power and toughness are each equal to the number of permanents of the chosen color your opponents control.

Flying

Whenever you cast an Adventure spell, you may copy it. You may choose new targets for the copy.

, : Destroy target artifact creature.

At the beginning of your end step, Chandra, Legacy of Fire deals X damage to each opponent, where X is the number of planeswalkers you control.

+1: Add for each planeswalker you control.

0: Remove a loyalty counter from each of any number of permanents you control. Exile that many cards from the top of your library. You may play them this turn.

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

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

Trample

Battle Cannon — When Chaos Defiler enters or dies, for each opponent, choose a nonland permanent that player controls. Destroy one of them chosen at random.

You gain 5 life.

Noncreature spells cost more to cast.

Whenever a player casts a noncreature spell, put a collection counter on Charitable Levy. Then if there are three or more collection counters on it, sacrifice it. If you do, draw a card, then you may search your library for a Plains card, put it onto the battlefield tapped, then shuffle.

, , Discard a card: The next time a source of your choice would deal damage to target creature this turn, prevent that damage.

Double strike

: Char-Rumbler gets +1/+0 until end of turn.

: Monstrosity 2. (If this creature isn't monstrous, put two +1/+1 counters on it and it becomes monstrous. can be paid with one mana from a snow source.)

As long as Chillerpillar is monstrous, it has flying.

Haste

When Chimney Rabble enters, create a 1/1 red Phyrexian Goblin creature token.

Flash

Enchant creature

As Cho-Manno's Blessing enters, choose a color.

Enchanted creature has protection from the chosen color. This effect doesn't remove Cho-Manno's Blessing.

Flash

When Chrome Prowler enters, tap target creature an opponent controls.

Flash

This spell can't be countered.

Flying

Discard a card: Until end of turn, Chromium, the Mutable becomes a Human with base power and toughness 1/1, loses all abilities, and gains hexproof. It can't be blocked this turn.

When Chronicler of Worship enters the battlefield, put a random Shrine card from among the top seven cards of your library into your hand. It perpetually gains "This spell costs less to cast." Then shuffle.

: Add one mana of any color.

: Cinder Crawler gets +1/+0 until end of turn. Activate only if Cinder Crawler is blocked.

As Circle of Affliction enters, choose a color.

Whenever a source of the chosen color deals damage to you, you may pay . If you do, target player loses 1 life and you gain 1 life.

, Sacrifice a creature: The next time a source of your choice would deal damage to any target this turn, prevent that damage.

Vigilance

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

As Circle of Protection: Art enters, choose an artist.

: The next time a source of your choice with art by the chosen artist would deal damage to you this turn, prevent that damage.

: Return Circle of Protection: Art to its owner's hand.

: The next time a black source of your choice would deal damage to you this turn, prevent that damage.

: The next time a green source of your choice would deal damage to you this turn, prevent that damage.

: The next time a creature of your choice with shadow would deal damage to you this turn, prevent that damage.

As Circle of Solace enters, choose a creature type.

: The next time a creature of the chosen type would deal damage to you this turn, prevent that damage.

Bear Form — During your turn, Circle of the Moon Druid is a Bear with base power and toughness 4/2. (It loses all other creature types.)

Trample

When you cast this spell and whenever Cityscape Leveler attacks, destroy up to one target nonland permanent. Its controller creates a tapped Powerstone token.

Unearth