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.

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}

Enchant nonland permanent
Enchanted permanent can't attack or block, and its activated abilities can't be activated unless they're mana abilities.
Enchanted permanent has “At the beginning of your upkeep, you lose 1 life.”

Enchant creature
Whenever enchanted creature deals combat damage to a player or planeswalker, you may sacrifice it. If you do, untap all creatures you control and after this phase, there is an additional combat phase.

You may look at the top card of your library any time.
You may cast artifact and enchantment spells from the top of your library.
{T}, Sacrifice three artifacts and/or enchantments: Search your library for a card, then shuffle and put that card on top.

{C/B}: Integrate target card in a graveyard.
As long as a creature card with flying is integrated onto Corpsepyre Fiend, it has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, reach, trample, and vigilance.

{T}: Add {C}.
{X}{1}: Court of Miracles dares X.

Flying, ward {1}
Whenever you cast an instant or sorcery spell, mill a card. Return an instant or sorcery card milled this way to your hand. If you can't, put a +1/+1 counter on Covetous Frostwyrm.

Gain control of target permanent. Untap it. It gains haste until end of turn.

As Crownguard Ban enters the battlefield, choose a card name.
Spells with the chosen name can't be cast.
{3}, Exile a card from your hand with the chosen name: Draw a card. Any player may activate this ability.

The next spell you cast this turn may be cast as though it had flash. When you cast that spell, copy it. You may choose new targets for the copy.
Flashback {3}{U}{U}

When Cryptolabe enters, exile your hand and the top card of your library. You may play cards exiled this way for as long as they remain exiled.
{T}: Add {G}{U}. This mana can't be spent to cast spells from your hand.

Deathtouch
Ward—Pay 4 life.
Whenever Cybele of the Frozen Faith deals combat damage to a player, you may skip your next turn. If you do, at the beginning of your next turn's upkeep, each opponent discards their hand, you draw seven cards, then put seven +1/+1 counters on Cybele.

Untap all lands you control. Until end of turn, they become 1/1 Elemental artifact creatures with vigilance, indestructible, and haste in addition to their other types.

Search your library for a nonblack card, reveal it, put it into your hand, then shuffle.
Create a Treasure token.

When Data Weaver enters, integrate the top two cards of target opponent's library.
You may play cards that are integrated onto permanents you control, and mana of any type can be spent to cast them.

Ward {2}
At the beginning of your upkeep, put a +1/+1 counter on Decavolt Reactor.