Suspend 4--{U} (Rather than cast this card from your hand, pay {U} and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

Target player draws three cards.

Target player draws X cards. Shuffle Blue Sun's Zenith into its owner's library.

Search target opponent's library for a creature card and put that card onto the battlefield under your control. Then that player shuffles.

As Cavern of Souls enters the battlefield, choose a creature type.

{T}: Add {C}.

{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

{T}: Add {U}. Cephalid Coliseum deals 1 damage to you.

Threshold -- {U}, {T}, Sacrifice Cephalid Coliseum: Target player draws three cards, then discards three cards. Activate only if seven or more cards are in your graveyard.

You may have Clever Impersonator enter the battlefield as a copy of any nonland permanent on the battlefield.

Counter target spell unless its controller pays {3}.

Cycling {2}{U} ({2}{U}, Discard this card: Draw a card.)

When you cycle Complicate, you may counter target spell unless its controller pays {1}.

Counter target spell unless its controller pays {X}. Scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Enchant creature

You control enchanted creature.

Counter target spell.

Choose two --

• Counter target spell.

• Return target permanent to its owner's hand.

• Tap all creatures your opponents control.

• Draw a card.

You may return an Island you control to its owner's hand rather than pay this spell's mana cost.

Counter target spell unless its controller pays {1}.

Counter target spell.

Draw a card.

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Counter target spell. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Counter target spell. Its controller draws a card.

Draw a card.

{T}: Add {C}.

{3}, {T}, Sacrifice a land: Destroy target nonbasic land.

{T}: Add {C}.

{4}, {T}, Sacrifice Encroaching Wastes: Destroy target nonbasic land.

Counter target creature spell.

Return all creatures to their owners' hands.

Counter target creature spell.

Draw a card.

{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.

Look at the top X cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Flashback--{1}{U}, Exile X blue cards from your graveyard. (You may cast this card from your graveyard for its flashback cost, then exile it. You can't exile Flash of Insight to pay for its own flashback cost.)

Buyback--Discard two cards. (You may discard two cards in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)

Counter target spell.

Counter target spell unless its controller pays {1}.

You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost.

Counter target spell.

{T}: Add {C}.

{T}, Sacrifice Ghost Quarter: Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.

Flying

When Gilded Drake enters the battlefield, exchange control of Gilded Drake and up to one target creature an opponent controls. If you don't or can't make an exchange, sacrifice Gilded Drake. This ability still resolves if its target becomes illegal.

Counter target spell. If that spell is countered this way, put that card on the top or bottom of its owner's library instead of into that player's graveyard.

Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)

Return target nonland permanent to its owner's hand. If this spell was kicked, draw a card.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

+2: Look at the top card of target player's library. You may put that card on the bottom of that player's library.

0: Draw three cards, then put two cards from your hand on top of your library in any order.

-1: Return target creature to its owner's hand.

-12: Exile all cards from target player's library, then that player shuffles their hand into their library.

Lonely Sandbar enters the battlefield tapped.

{T}: Add {U}.

Cycling {U} ({U}, Discard this card: Draw a card.)

Counter target spell unless its controller pays {3}.

{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.

Counter target spell unless its controller pays {2}.

Cycling {2} ({2}, Discard this card: Draw a card.)

You may exile a blue card from your hand rather than pay this spell's mana cost.

Change the target of target spell with a single target.

{T}: Add {C}.

{1}: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.

{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

Counter target noncreature spell.

{T}: Add {C}.

{1}, {T}: Add one mana of any color in your commander's color identity. If you spend this mana to cast your commander, it enters the battlefield with a number of additional +1/+1 counters on it equal to the number of times it's been cast from the command zone this game.

Target player draws four cards.

Choose left or right. Starting with you and proceeding in the chosen direction, each player chooses a creature controlled by the next player in that direction. Each player gains control of the creature they chose.

As Pithing Needle enters the battlefield, choose a card name.

Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Look at the top three cards of your library, then put them back in any order. You may shuffle.

Draw a card.

Counter target creature spell.

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Counter target spell. If that spell is countered this way, put it into its owner's hand instead of into that player's graveyard.

Draw a card.

Remote Isle enters the battlefield tapped.

{T}: Add {U}.

Cycling {2} ({2}, Discard this card: Draw a card.)

Counter target creature spell.

Return target nonland permanent with mana value X to its owner's hand.

Draw a card.

Return target creature to its owner's hand.

Draw a card.

{T}: Add {C}.

{1}{U}, {T}: Return target Wizard you control to its owner's hand.

Counter target spell unless its controller pays {2} plus an additional {2} for each card named Rune Snag in each graveyard.

Blue spells you cast cost {1} less to cast.

Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.

Flash

When Snapcaster Mage enters the battlefield, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)

Counter target spell. If that spell is countered this way, put it on the bottom of its owner's library instead of into that player's graveyard. Put Spell Crumple on the bottom of its owner's library.

Counter target noncreature spell unless its controller pays {2}.

{T}: Add {C}.

{1}, {T}, Sacrifice Tectonic Edge: Destroy target nonbasic land. Activate only if an opponent controls four or more lands.

{T}: Add {C}.

{2}, {T}: Thespian's Stage becomes a copy of target land, except it has this ability.

Draw a card.

Flashback {2}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Draw three cards. Then discard two cards unless you discard an artifact card.

Tolaria West enters the battlefield tapped.

{T}: Add {U}.

Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with mana value 0, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Enchant creature

When Treachery enters the battlefield, untap up to five lands.

You control enchanted creature.

Choose a card name. Target player reveals cards from the top of their library until a card with that name is revealed. If it is, that player puts the rest of the revealed cards into their graveyard and puts the card with the chosen name on top of their library. Otherwise, the player shuffles.

Whenever equipped creature deals combat damage, put two charge counters on Umezawa's Jitte.

Remove a charge counter from Umezawa's Jitte: Choose one --

• Equipped creature gets +2/+2 until end of turn.

• Target creature gets -1/-1 until end of turn.

• You gain 2 life.

Equip {2}

You may choose not to untap Vedalken Shackles during your untap step.

{2}, {T}: Gain control of target creature with power less than or equal to the number of Islands you control for as long as Vedalken Shackles remains tapped.

Flash

Flying

When Vendilion Clique enters the battlefield, look at target player's hand. You may choose a nonland card from it. If you do, that player reveals the chosen card, puts it on the bottom of their library, then draws a card.

Flash

When Venser, Shaper Savant enters the battlefield, return target spell or permanent to its owner's hand.

{T}: Add {C}.

{T}, Sacrifice Wasteland: Destroy target nonbasic land.

Return target creature to its owner's hand. Then return another target creature to its owner's hand unless its controller pays {1}.