As an additional cost to cast this spell, sacrifice a blue permanent.

Counter target spell.

Gain control of target spell. You may choose new targets for it. (If that spell becomes a permanent, it enters the battlefield under your control.)

Scry 2, then draw two cards.

Foretell {1}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Create a token that's a copy of target creature you control.

Flashback {5}{U}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Spells you control can't be countered.

At the beginning of your end step, discover 5. (Exile cards from the top of your library until you exile a nonland card with mana value 5 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

As Cloud Key enters the battlefield, choose artifact, creature, enchantment, instant, or sorcery.

Spells you cast of the chosen type cost {1} less to cast.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)

You may cast sorcery spells this turn as though they had flash.

When you next cast an instant or sorcery spell this turn, copy that spell twice. You may choose new targets for the copies.

Coral Atoll enters the battlefield tapped.

When Coral Atoll enters the battlefield, sacrifice it unless you return an untapped Island you control to its owner's hand.

{T}: Add {C}{U}.

Turn target creature face down. It's a 2/2 Cyberman artifact creature.

Return target nonland permanent you don't control to its owner's hand.

Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Return target spell or permanent with mana value 1 or greater to its owner's hand.

Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

{2}, {T}: Reveal the top card of your library. If it's a creature card, create a 1/1 green Saproling creature token. If it's a land card, put that card onto the battlefield under your control. If it's a noncreature, nonland card, you gain 2 life.

Return to their owners' hands all creatures with toughness less than or equal to the number of Islands you control.

{2}, {T}, Sacrifice Expedition Map: Search your library for a land card, reveal it, put it into your hand, then shuffle.

Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.)

Look at the top four cards of your library. If this spell was bargained, look at the top eight cards of your library instead. Put two of them into your hand and the rest on the bottom of your library in a random order.

Creatures your opponents control have base power and toughness 0/1 until end of turn.

Counter target spell. If that spell is countered this way, its controller may put a creature card from their hand onto the battlefield.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)

Counter target spell.

Target opponent looks at the top four cards of your library and separates them into a face-down pile and a face-up pile. Put one pile into your hand and the other into your graveyard.

Return target creature to its owner's hand. Gain control of all Auras and Equipment that were attached to it, then attach them to another creature.

If a creature would enter the battlefield under an opponent's control this turn, it enters the battlefield under your control instead.

Gain control of target Equipment, then create a 0/0 black Phyrexian Germ creature token and attach that Equipment to it.

Return target artifact, enchantment, or land to its owner's hand.

As long as it's not your turn, this spell costs {3} more to cast.

Return all nonland permanents to their owners' hands. End the turn. (Exile all spells and abilities from the stack, including this card. The player whose turn it is discards down to their maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

Return all artifacts target player owns to their hand.

Cast this spell only during the declare blockers step on an opponent's turn.

Remove all attacking creatures from combat and untap them. After this phase, there is an additional combat phase. Each of those creatures attacks that combat if able. They can't attack you or planeswalkers you control that combat.

Exile up to two target creatures you control, then return those cards to the battlefield under their owner's control.

Draw a card.

This spell costs {3} less to cast if an opponent has seven or more cards in their graveyard.

Draw four cards.

Draw three cards.

Shuffle a card from your hand into your library. If you do, draw two cards at the beginning of the next turn's upkeep.

Target player returns each commander they control from the battlefield to the command zone.

Draw a card.

Look at the top X cards of your library, where X is the number of artifacts you control. Put one of those cards into your hand and the rest on the bottom of your library in any order.

Draw three cards.

Basic landcycling {1}{U} ({1}{U}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

Put target permanent an opponent controls on top of its owner's library. That opponent may put an artifact, creature, enchantment, or land card from their hand onto the battlefield.

Each player shuffles their graveyard into their library.

Target spell or permanent becomes colorless.

{1}, {T}, Sacrifice Moonsilver Key: Search your library for an artifact card with a mana ability or a basic land card, reveal it, put it into your hand, then shuffle.

Target player draws four cards.

Scry 1.

Draw a card.

Assist (Another player can pay up to {3} of this spell's cost.)

Counter target spell.

Until end of turn, if a player taps a nonbasic land for mana, it produces colorless mana instead of any other type.

Look at target player's hand.

Draw a card.

Until end of turn, if target player would draw a card, instead that player skips that draw and you draw a card.

Draw three cards.

Addendum -- If you cast this spell during your main phase, instead scry 3, then draw three cards.

Each opponent gets a poison counter.

Draw a card.

Draw four cards, then discard two cards.

Shuffle all cards from your graveyard into your library. Target player mills that many cards.

The next sorcery spell you cast this turn can be cast as though it had flash. (It can be cast any time you could cast an instant.)

Draw a card.

Draw three cards, then discard a card.

Untap target creature an opponent controls and gain control of it until end of turn. That creature gains haste until end of turn. When you lose control of the creature, tap it.

This spell costs {1} less to cast for each artifact you control.

Look at the top seven cards of your library. You may reveal up to two artifact cards from among them and put them into your hand. Put the rest on the bottom of your library in a random order.

Return target permanent to its owner's hand.

All damage that would be dealt this turn by target sorcery spell is dealt to that spell's controller instead.

Choose one --

• Counter all other spells.

• Switch each creature's power and toughness until end of turn.

• Creatures can't be blocked this turn.

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.)

This spell costs {1} less to cast for each creature that attacked this turn.

Draw three cards.

Choose two target creatures controlled by different players. Return those creatures to their owners' hands.

Choose one --

• Look at the top five cards of target opponent's library, then put them back in any order.

• Look at the top five cards of your library, then put them back in any order.

Entwine {U} (Choose both if you pay the entwine cost.)

Whenever an instant or sorcery spell is cast during your turn, Sentinel Tower deals damage to any target equal to 1 plus the number of instant and sorcery spells cast before that spell this turn.

If Soldevi Excavations would enter the battlefield, sacrifice an untapped Island instead. If you do, put Soldevi Excavations onto the battlefield. If you don't, put it into its owner's graveyard.

{T}: Add {C}{U}.

{1}, {T}: Scry 1.

Counter target spell. Create X Treasure tokens, where X is that spell's mana value. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

Counter target instant or sorcery spell. Its controller reveals cards from the top of their library until they reveal an instant or sorcery card. That player may cast that card without paying its mana cost. Then the player shuffles.

Target creature gets -2/-0 until end of turn. Create a 2/2 black Zombie creature token with decayed. (It can't block. When it attacks, sacrifice it at end of combat.)

Draw a card.

Equipped creature gets +2/+2 and has protection from blue and from black.

Whenever equipped creature deals combat damage to a player, surveil 2. Then you may cast an instant or sorcery spell with mana value 2 or less from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead.

Equip {2}

Exile all creatures you control. At the beginning of the next end step, reveal cards from the top of your library until you reveal that many creature cards, put all creature cards revealed this way onto the battlefield, then shuffle the rest of the revealed cards into your library.

Tap target creature. Prevent all combat damage that would be dealt by that creature this turn. It doesn't untap during its controller's next two untap steps.

As Throne of Eldraine enters the battlefield, choose a color.

{T}: Add four mana of the chosen color. Spend this mana only to cast monocolored spells of that color.

{3}, {T}: Draw two cards. Spend only mana of the chosen color to activate this ability.

End the turn. (Exile all spells and abilities from the stack, including this card. The player whose turn it is discards down to their maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

Sacrifice an artifact. If you do, search your library for an artifact card. If that card's mana value is less than or equal to the sacrificed artifact's mana value, put it onto the battlefield. If it's greater, you may pay {X}, where X is the difference. If you do, put it onto the battlefield. If you don't, put it into its owner's graveyard. Then shuffle.

Reveal cards from the top of your library until you reveal a nonland card, then put all cards revealed this way into your hand.

Whenever you cast a spell, creatures you control can't be the targets of spells or abilities your opponents control this turn.

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

Return target permanent to its owner's hand.

Target opponent gains control of target creature. (If an attacking or blocking creature changes controllers, it's removed from combat.)

Choose one --

• Foil Their Scheme -- Counter target spell.

• Learn Their Secrets -- Draw two cards, then discard two cards.