mtg.wtf

Whenever you attack, target opponent loses X life, where X is the number of artifacts you control.
Whenever chaos ensues, for each opponent, you create a 3/3 black Dalek artifact creature token with menace that attacks that opponent this turn if able. Those tokens gain haste. Sacrifice them at the beginning of the next end step.

Deathtouch
When Citystalker Connoisseur enters, target opponent discards a nonland card with the greatest mana value among cards in their hand. Create a Blood token.

Whenever Civil Servant attacks, you may tap another untapped Citizen you control. If you do, Civil Servant gets +1/+0 and gains trample until end of turn.

When Claire D'Loon, Joy Sculptor enters, for the rest of the game, tokens you own become cards that are still tokens. (They continue to exist after they leave the battlefield.)
{1}{W}{U}, {T}: You may put a token from your graveyard or hand onto the battlefield.

Look at target player's hand.
Draw a card at the beginning of the next turn's upkeep.

As Clam Session enters, choose a word.
At the beginning of your upkeep, you may sing at least six words of a song, at least one of which is the chosen word. If you don't, sacrifice Clam Session. You can't repeat a song.

If you roll a 3 on a six-sided die, you may reroll that die.

Whenever Clambassadors deals damage to a player, choose an artifact, creature, or land you control. That player gains control of that permanent.

When Clandestine Chameleon enters, you get {TK}{TK}, then you may put a sticker on a nonland permanent you own.
Clandestine Chameleon has all abilities of ability stickers on other permanents you own and cards in your graveyard.

Impossible Girl — If Clara Oswald is your commander, choose a color before the game begins. Clara Oswald is the chosen color.
If a triggered ability of a Doctor you control triggers, that ability triggers an additional time.
Doctor's companion

{6}, Roll a d8: Monstrosity X, where X is the result.
Berserk — When Clay Golem becomes monstrous, destroy target permanent.

Flying
{1}, Throw Clay Pigeon into the air at least two feet above your head while seated: If you catch Clay Pigeon with one hand, prevent all damage a source of your choice would deal to you this turn and tap Clay Pigeon. Otherwise, sacrifice it.

For each land, destroy that land unless any player pays 1 life.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Destroy target artifact, enchantment, token, emblem, day/night tracker, monarch, initiative, dungeon, city's blessing, Attraction, Contraption, plane, scheme, vanguard, bounty, conspiracy, elite creature, or Magic: The Gathering Online avatar.

Spell commander (This card can be your commander. In Limited, it can partner like other monocolored legends.)
Target player shuffles their graveyard into their library.
Draw a card.

Multicleave {1} (You may pay an additional {1} any number of times as you cast this spell. For each time you do, choose a paired set of square brackets and remove the words in between.)
Destroy target [nonblack] creature [with mana value 3 or less] [an opponent controls]. You [and its controller each] draw a card [and lose 2 life]. Create a [tapped] 1/1 white Spirit creature token with flying.

Double strike
Heroic — Whenever you cast a spell that targets Cleon, exile the top card of your library. You may play that card until the end of your next turn.

If Clergy of the Holy Nimbus would be destroyed, regenerate it.
{1}: Clergy of the Holy Nimbus can't be regenerated this turn. Only your opponents may activate this ability.

Search your library for a host card or a card with augment, reveal it, put it into your hand, then shuffle.

When you planeswalk to Cliffside Market and at the beginning of your upkeep, you may exchange life totals with target player.
Whenever chaos ensues, exchange control of two target permanents that share a card type.

Target creature gains flying until end of turn.
Draw a card.

Equipped creature gets +1/+1.
{2}: Untap equipped creature.
Equip {2}

{4}, {T}: Move the CRANK! counter to your Contraption deck's next sprocket and crank any number of that sprocket's Contraptions.

When Clocknapper enters, choose beginning phase, first main phase, combat phase, postcombat main phase, or ending phase. Steal that phase from target player during their next turn. (That phase occurs as though it's your turn instead.)

You may exert Clockwork Droid as it attacks. When you do, it can't be blocked this turn and you scry 1.