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.

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

Counter target spell.

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 each nonland permanent that's not historic to its owner's hand. (Artifacts, legendaries, and Sagas are historic.)

Counter target spell. Its controller draws a card. Draw a card.

If you control a commander, you may cast this spell without paying its mana cost. Counter target noncreature spell.

You may sacrifice a nontoken blue creature rather than pay this spell's mana cost. Counter target spell.

If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost. Counter target noncreature spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

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

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

Search your library for three cards and reveal them. Target opponent chooses one. Put that card into your hand and the rest into your graveyard. Then shuffle.

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.

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.

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

You may choose new targets for target spell.

Return target permanent you control to its owner's hand.

Whenever a nonartifact permanent you control enters, you may return another permanent you control that shares a permanent type with it to its owner's hand.

At the beginning of your end step, you may exile target creature you control, then return that card to the battlefield under your control.

{T}: Add three mana of any one color.

Creatures with power 3 or greater don't untap during their controllers' untap steps.

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

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

You have no maximum hand size. {T}: Add {C}.

You may cast spells as though they had flash.

{T}: Add {C}. {1}{U}, {T}: Put target artifact card from your graveyard on top of your library.

{T}: Add {C}. {1}, {T}: Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.

As this land enters, 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 {C}. {1}, {T}: Until end of turn, your opponents and creatures your opponents control with hexproof can be the targets of spells and abilities you control as though they didn't have hexproof.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

{T}: Add {U}. {U}, {T}: Untap target legendary permanent.

This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

({T}: Add {U}.) This land enters tapped unless you control three or more other Islands. When this land enters untapped, you may put target instant or sorcery card from your graveyard on top of your library.

{T}: Add {U}. {1}: Return Oboro to its owner's hand.

{T}: Add {U}. Channel — {3}{U}, Discard this card: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.

You have no maximum hand size. {T}: Add {C}.

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

{T}: Add {C}. {T}, Sacrifice this land: Destroy target land.

When this creature enters, return target creature to its owner's hand.

When this creature enters, choose one — • Create a 1/1 white Bird creature token with flying. • Return another target nonland permanent to its owner's hand. • Draw a card.

{T}: Untap target artifact or creature. Morph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

When this creature enters, return target instant or sorcery card from your graveyard to your hand.

When Barrin enters, return up to one other target creature or planeswalker to its owner's hand. At the beginning of your end step, if a permanent was put into your hand from the battlefield this turn, draw a card.

When this creature enters, if you cast it from your hand, return all permanents to their owners' hands except for Giants, Wizards, and lands.

Whenever one or more other creatures you control leave the battlefield without dying, draw a card. {1}{U}, {T}: Return another target creature you control to its owner's hand.

When this creature enters, you may exile an instant card from your hand. {X}, {T}: Copy the exiled card. You may cast the copy without paying its mana cost. X is the mana value of the exiled card.

Flash (You may cast this spell any time you could cast an instant.) Flying You may cast spells as though they had flash.

If you would draw a card while your library has no cards in it, you win the game instead.

Spells can't be countered. Each instant and sorcery card in your graveyard has flashback. The flashback cost is equal to that card's mana cost.

Level up {U} ({U}: Put a level counter on this. Level up only as a sorcery.) LEVEL 4-6 2/4 LEVEL 7+ 3/5 At the beginning of each end step, if it's not your turn, take an extra turn after this one.

Protection from red Elemental creatures you control get +1/+1. When this creature enters, create a number of 1/0 blue Elemental creature tokens equal to your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)

When this creature enters, draw a card.

Flash When this creature enters, tap target creature an opponent controls. It loses all abilities until end of turn.

When this creature enters, you may search your library for an instant or sorcery card with mana value 1, reveal it, put it into your hand, then shuffle.

Tap an untapped Wizard you control: Counter target spell unless its controller pays {1}.

Flash When this creature enters, 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.)

Flying When this creature enters, gain control of target creature for as long as this creature remains on the battlefield.

When this creature enters, you may search your library for an instant or sorcery card with mana value 2 or less, reveal it, put it into your hand, then shuffle.

Flash Creature cards you own that aren't on the battlefield have flash. Each opponent can cast spells only any time they could cast a sorcery.

When this creature enters, tap all creatures target opponent controls.

When this creature enters, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on top of your library and the rest on the bottom of your library in a random order. If X is greater than or equal to the number of cards in your library, you win the game. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)

Indestructible As long as your devotion to blue is less than five, Thassa isn't a creature. At the beginning of your end step, exile up to one other target creature you control, then return that card to the battlefield under your control. {3}{U}: Tap another target creature.

Flash (You may cast this spell any time you could cast an instant.) When Venser enters, return target spell or permanent to its owner's hand.

Flash (You may cast this spell any time you could cast an instant.) When this creature enters, counter target activated ability. (Mana abilities can't be targeted.) Whenever you cast a spell, you may return this creature to its owner's hand.

If you would draw a card while your library has no cards in it, you win the game instead. +1: Target player mills two cards. Draw a card. −8: Draw seven cards. Then if your library has no cards in it, you win the game.

If this card is in your opening hand, you may begin the game with it on the battlefield. You may cast spells as though they had flash.

Whenever an opponent casts their first spell each turn, that player exiles the top card of their library. If it's a nonland card, you may cast it without paying its mana cost.

You may cast spells from your hand without paying their mana costs.

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

As this enchantment enters, choose a creature type. Whenever you cast a spell of the chosen type, copy that spell. (A copy of a permanent spell becomes a token.)

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

Whenever you cast a noncreature spell, create an X/X blue Shark creature token with flying, where X is that spell's mana value. Cycling {X}{1}{U} ({X}{1}{U}, Discard this card: Draw a card.) When you cycle this card, create an X/X blue Shark creature token with flying.

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

Replicate {U} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.) Return target nonland permanent and each other nonland permanent with the same mana value as that permanent to their owners' hands.

Exile all cards from your library. Then shuffle your graveyard into your library.