Counter all other spells. Exile up to one spell countered this way instead of putting it into its owner's graveyard. You may cast that spell for as long as it remains exiled, and mana of any type can be spent to cast it.

At the beginning of your upkeep, exile the top card of target opponent's library. You may play that card for as long as it remains exiled, and mana of any type can be spent to cast it.
Spells you cast and don't own cost {1} less to cast.

Take an extra turn after this one. Put Captivating Dreams on the bottom of your library.
If Captivating Dreams would be put into a graveyard from anywhere, exile it instead.

Wander {2}{W}{W}
[–1]: Create your choice of a 1/1 white Bird creature token with flying or a 2/2 black Cat creature token.
[–2]: If a permanent entering the battlefield under your control this turn causes an ability of a permanent you control to trigger, that ability triggers an additional time.
[–3]: Put a +1/+1 counter on each creature you control.

[+1]: Up to one target creature you control dares 4 and gains vigilance until end of turn.
[–2]: Cathette deals 2 damage to any target and you gain 2 life. Target player creates two 1/1 white Warrior creature tokens.
[–6]: You get an emblem with “At the end of the first combat phase on each of your turns, untap each creature you control. After this phase, there is an additional combat phase.”

At the beginning of your end step, for each opponent with an even number of cards in hand, they lose 3 life and you gain 3 life.
[+1]: Target player draws a card and loses 1 life.
[–4]: Target opponent exiles one or more cards from their hand. Then you may have that player exchange their hand and the exiled cards.

Vigilance
Whenever Cerys attacks, you may return a nontoken permanent you control to its owner's hand. If you do, create two 1/1 red Soldier creature tokens that are tapped and attacking.

Flying, haste
When Chainbreaker's Familiar enters, exile target instant or sorcery card from your graveyard. You may cast a copy of that card until the end of your next turn.
At the beginning of combat on your turn, if you've spent at least five mana to cast spells this turn, you may return Chainbreaker's Familiar from your graveyard to your hand.

Whenever Chamille, AAA-Lister attacks, target nonlegendary creature can't block it this turn.
Whenever Chamille deals combat damage to a player, put a +1/+1 counter on it, then create a Treasure token for each counter on it.

First strike
When Chosen of Heliod enters the battlefield, bless target creature.
{4}{W}{W}: Bless target creature you control. Activate only as a sorcery.

You may cast this spell without paying its mana cost if your devotion to black is four or greater.
Deathtouch
Whenever Chrolcatos deals combat damage to player, you draw a card and you lose 1 life.

Choose one. If this spell's flashback cost was paid, instead choose three and you may choose the same mode more than once.
• Destroy target artifact.
• This spell deals 3 damage to any target.
• You may discard one or more cards. If you do, draw that many cards plus one.
Flashback {7}{R}{R}

Choose one. If this spell's flashback cost was paid, instead choose three and you may choose the same mode more than once.
• Draw a card, then you may put a permanent card from your hand onto the battlefield.
• You gain 1 life for each permanent you control.
• Destroy target noncreature permanent.
Flashback {7}{G}{G}

Choose one. If this spell's flashback cost was paid, instead choose three and you may choose the same mode more than once.
• Create three 1/1 white Human creature tokens.
• Put a +1/+1 counter on each creature you control.
• Exile target nonland permanent until you control no creatures.
Flashback {6}{W}{W}

Choose one. If this spell's flashback cost was paid, instead choose three and you may choose the same mode more than once.
• All creatures get -3/-3 until end of turn.
• Target player sacrifices a creature and a planeswalker.
• Target player discards two cards, then exiles their graveyard.
Flashback {7}{B}{B}

Choose one. If this spell's flashback cost was paid, instead choose three and you may choose the same mode more than once.
• Draw two cards.
• Create a token that's a copy of target artifact or creature you control.
• Target player mills seven cards.
Flashback {6}{U}{U}

Creatures you control have ward {2}.
[+1]: Scry 2. You may put a loyalty counter on another planeswalker you control.
[–1]: Create a 0/0 white Army creature token, then put a +1/+1 counter on each Army you control.
[–6]: Exile target nonland permanent.

Whenever Claes, Shield of Karda attacks, another target attacking creature you control gains indestructible until end of turn.
Whenever a planeswalker enters the battlefield under your control, you may exile Claes, then return him to the battlefield transformed with a number of loyalty counters on him equal to the starting loyalty of that planeswalker.

Choose a color. Exile all permanents of the chosen color. Until the end of your next turn, if you would add {C}, instead add {C} and one mana of the chosen color.

{T}: Add {C}.
If you would add {C}, you may pay 1 life. If you do, add {G} instead.

{T}: Add {C}.
If you would add {C}, you may pay 1 life. If you do, add {B} instead.

{T}: Add {C}.
If you would add {C}, you may pay 1 life. If you do, add {U} instead.

{T}: Add {C}.
If you would add {C}, you may pay 1 life. If you do, add {W} instead.

{T}: Add {C}.
If you would add {C}, you may pay 1 life. If you do, add {R} instead.

{T}, Exile an instant or sorcery card from your graveyard: Add one mana of any type.
Once each turn, when you cast an instant or sorcery spell, you may create a 1/1 colorless Construct artifact creature token.