You may exile a red card with mana value X from your hand rather than pay this spell's mana cost. Target creature gets +X/+0 until end of turn.

Untap target nonlegendary creature and gain control of it until end of turn. That creature gains haste until end of turn.

You may exile a blue card with mana value X from your hand rather than pay this spell's mana cost. Counter target spell if its mana value is X.

Search your library for an Arcane card, reveal that card, put it into your hand, then shuffle.

First Volley deals 1 damage to target creature and 1 damage to that creature's controller.

Draw three cards. Discard three cards at the beginning of the next end step.

Ire of Kaminari deals damage to any target equal to the number of Arcane cards in your graveyard.

Lava Spike deals 3 damage to target player or planeswalker.

Exile target creature. At the beginning of the next end step, return that card to the battlefield under its owner's control with a +1/+1 counter on it.

Look at the top five cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Look at the top three cards of your library. You may put those cards on the bottom of your library in any order. If you do, return Petals of Insight to its owner's hand. Otherwise, draw three cards.

Whenever a spell or ability an opponent controls causes you to discard cards this turn, return those cards from your graveyard to your hand. When a spell or ability an opponent controls causes you to discard this card, return this card from your graveyard to your hand at the beginning of the next end step.

Destroy target enchantment.

Draw a card.

Draw a card for each Spirit you control.

You may exile a white card with mana value X from your hand rather than pay this spell's mana cost. The next X damage that a source of your choice would deal to you and/or creatures you control this turn is dealt to any target instead.

Draw two cards, then discard a card. If you've cast a spell named Peer Through Depths and a spell named Reach Through Mists this turn, you may search your library for a card named The Unspeakable, put it onto the battlefield, then shuffle.

Spiraling Embers deals damage to any target equal to the number of cards in your hand.

Target player shuffles up to four target cards from their graveyard into their library.

Destroy target artifact or land.

Tap up to three target creatures.

Destroy target artifact or enchantment. You gain life equal to its mana value.

Destroy target attacking creature with power 3 or less.

You may tap or untap target permanent, then you may tap or untap another target permanent.

Up to three target creatures can't block this turn.

{T}: Add one mana of any color in your commander's color identity.

{1}, {T}: Add {W}{U}.

{1}, {T}: Add {R}{W}.

{T}: Add one mana of any color that a land an opponent controls could produce.

{1}, {T}: Add {U}{R}.

Arcane spells you cast cost {1} less to cast. Spirit creatures you control get +1/+1.

{T}: Add {C}. {T}: Add {R} or {W}. This artifact deals 1 damage to you.

Each instant and sorcery spell you cast costs {1} less to cast for each creature it targets. Heroic — Whenever you cast a spell that targets this creature, this creature gains hexproof until end of turn.

When this creature enters, destroy target enchantment. Whenever you cast a Spirit or Arcane spell, you may return this creature to its owner's hand.

Whenever you cast a Spirit or Arcane spell, you may destroy target nonbasic land.

Flying Whenever you cast a Spirit or Arcane spell, create a 3/3 white Spirit creature token with flying.

Flying Whenever you cast a Spirit or Arcane spell, you may gain control of target creature with that spell's mana value until end of turn.

Flying, trample Whenever The Unspeakable deals combat damage to a player, you may return target Arcane card from your graveyard to your hand.

Heroic — Whenever you cast a spell that targets this creature, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep. You draw a card at the beginning of the next turn's upkeep.

Aurelia's Fury deals X damage divided as you choose among any number of targets. Tap each creature dealt damage this way. Players dealt damage this way can't cast noncreature spells this turn.

Multikicker {1} (You may pay an additional {1} any number of times as you cast this spell.) Choose any target, then choose another target for each time this spell was kicked. Comet Storm deals X damage to each of them.

Exile X target creatures, then investigate X times. Return the exiled cards to the battlefield tapped under their owners' control at the beginning of the next end step. (To investigate, create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

Prevent all damage that would be dealt by creatures this turn.

Draw a card. Splice onto instant or sorcery {2}{U} (As you cast an instant or sorcery spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Choose one — • Destroy X target artifacts and/or enchantments. • Target player gains twice X life.

Tap X target creatures. Ferocious — If you control a creature with power 4 or greater, those creatures don't untap during their controllers' next untap steps.

Magma Opus deals 4 damage divided as you choose among any number of targets. Tap two target permanents. Create a 4/4 blue and red Elemental creature token. Draw two cards. {U/R}{U/R}, Discard this card: Create a Treasure token.

As an additional cost to cast this spell, you may exile any number of blue cards from your hand. This spell costs {2} less to cast for each card exiled this way. Up to X target creatures phase out. (While they're phased out, they're treated as though they don't exist. Each one phases in before its controller untaps during their next untap step.)

Reveal the top three cards of your library. An opponent chooses one of them. Put that card into your graveyard and the rest into your hand.

Choose three. You may choose the same mode more than once. • Counter target spell unless its controller pays {3}. • Return target creature to its owner's hand. • Draw a card.

Counter target noncreature spell.

Creatures you control get +2/+0 until end of turn.

Choose one — • Tap X target permanents. • Untap X target permanents.

{T}: Add one mana of any color in your commander's color identity.

{T}: Add one mana of any color that a land an opponent controls could produce.

({T}: Add {U}.)

({T}: Add {R}.)

Return up to three target artifacts and/or creatures to their owners' hands. You may cast a spell with mana value 4 or less from your hand without paying its mana cost.

Destroy X target artifacts.

Destroy all enchantments.

Each player sacrifices a permanent of their choice.

Exile X target creatures. For each creature exiled this way, its controller creates a 2/2 green Boar creature token.

Return X target nonland permanents to their owners' hands.

Return target permanent to its owner's hand.

Gain control of X target creatures and/or planeswalkers.

Return up to one target artifact card, up to one target enchantment card, up to one target instant card, up to one target sorcery card, and up to one target planeswalker card from your graveyard to your hand. Exile Reconstruct History.

For each of up to X target creatures, create a red Aura enchantment token named Smoke Blessing attached to that creature. Those tokens have enchant creature and "When enchanted creature dies, it deals 1 damage to its controller and you create a Treasure token."

Target creature you control gains protection from the color of your choice until end of turn. Splice onto Arcane {W} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Prevent the next 3 damage that would be dealt to any target this turn. You gain life equal to the damage prevented this way. Splice onto Arcane {1}{W} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Return target creature to its owner's hand. Splice onto Arcane {3}{U} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Target player mills four cards. Splice onto Arcane {1}{U} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Add {R}{R}{R}. Splice onto Arcane {1}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

(Nonexistent mana costs can't be paid.) Draw a card. Splice onto Arcane {1}{U} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Glacial Ray deals 2 damage to any target. Splice onto Arcane {1}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Target creature gets +1/+0 and gains first strike until end of turn. Splice onto Arcane—Tap an untapped white creature you control. (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Target creature attacks this turn if able. Splice onto Arcane {R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Target creature gains flying until end of turn. Splice onto Arcane {1}{U} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Each time target permanent would deal damage to a permanent or player this turn, it deals double that damage to that permanent or player instead. Splice onto Arcane {2}{R}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

You may tap or untap target permanent. Splice onto Arcane {U} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Target permanent's controller sacrifices it. If the player does, they reveal cards from the top of their library until they reveal a permanent card that shares a card type with the sacrificed permanent, put that card onto the battlefield, then shuffle. Splice onto Arcane {2}{U}{U} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Exchange control of two target lands. Splice onto Arcane {3}{U} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Create a 1/1 colorless Spirit creature token. Splice onto Arcane {W} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Switch target creature's power and toughness until end of turn. Splice onto Arcane {1}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

You may put a creature card from your hand onto the battlefield. That creature gains haste. Sacrifice that creature at the beginning of the next end step. Splice onto Arcane {2}{R}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)