Change the text of target spell or permanent by replacing all instances of one color word with another. (This effect lasts indefinitely.)

Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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

Red spells cost {2} more to cast.

Counter target spell.

Surge {3}{U}{U} (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.)

Return all nonland permanents to their owners' hands. If this spell's surge cost was paid, create an 8/8 blue Octopus creature token.

Change the text of target spell or permanent by replacing all instances of one color word with another or one basic land type with another until end of turn.

Draw a card.

{1}{U}: Counter target red spell.

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

Change the text of target spell or permanent by replacing all instances of one color word with another.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Return all nonblue creatures to their owners' hands.

When Llawan, Cephalid Empress enters the battlefield, return all blue creatures your opponents control to their owners' hands.

Your opponents can't cast blue creature spells.

Change the text of target permanent by replacing all instances of one color word with another or one basic land type with another. (For example, you may change "nonblack creature" to "nongreen creature" or "forestwalk" to "islandwalk." This effect lasts indefinitely.)

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

Each opponent can't draw more than one card each turn.

-2: Look at the top four cards of your library. You may reveal a noncreature, nonland card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Counter target noncreature spell.

Scry 1.

Draw a card.

One or more target creatures become blue until end of turn.

As Shifting Sky enters the battlefield, choose a color.

All nonland permanents are the chosen color.

Change the text of target spell or permanent by replacing all instances of one color word with another. (For example, you may change "target black spell" to "target blue spell." This effect lasts indefinitely.)

Choose one --

• Change the text of target spell or permanent by replacing all instances of one basic land type with another. (This effect lasts indefinitely.)

• Change the text of target spell or permanent by replacing all instances of one color word with another. (This effect lasts indefinitely.)

Entwine {2} (Choose both if you pay the entwine cost.)

As Swirl the Mists enters the battlefield, choose a color word.

All instances of color words in the text of spells and permanents are changed to the chosen color word.