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

As Caged Sun enters the battlefield, choose a color. Creatures you control of the chosen color get +1/+1. Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.

When Coveted Jewel enters the battlefield, draw three cards. {T}: Add three mana of any one color. Whenever one or more creatures an opponent controls attack you and aren't blocked, that player draws three cards and gains control of Coveted Jewel. Untap it.

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

Imprint — When Isochron Scepter enters the battlefield, you may exile an instant card with mana value 2 or less from your hand. {2}, {T}: You may copy the exiled card. If you do, you may cast the copy without paying its mana cost.

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you. {T}: Add {C}{C}.

Mana Vault doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault. At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you. {T}: Add {C}{C}{C}.

The "legend rule" doesn't apply to permanents you control. Each legendary creature you control gets +1/+1. Each nontoken creature you control gets +1/+1 for each other creature you control with the same name as that creature.

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

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

When Agent of Treachery enters the battlefield, gain control of target permanent. At the beginning of your end step, if you control three or more permanents you don't own, draw three cards.

When Amphin Mutineer enters the battlefield, exile up to one target non-Salamander creature. That creature's controller creates a 4/3 blue Salamander Warrior creature token. Encore {4}{U}{U} ({4}{U}{U}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

When Archaeomancer enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

Magecraft — Whenever you cast or copy an instant or sorcery spell, draw a card.

Flying {U}, Sacrifice Glen Elendra Archmage: Counter target noncreature spell. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Flash This spell can't be countered. Whenever you cast a spell, choose up to one — • Return target spell you don't control to its owner's hand. • Return target nonland permanent to its owner's hand.

Protection from red Elemental creatures you control get +1/+1. When Master of Waves enters the battlefield, 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.)

Flying When Mulldrifter enters the battlefield, draw two cards. Evoke {2}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Flying When Peregrine Drake enters the battlefield, untap up to five lands.

({U/P} can be paid with either {U} or 2 life.) You may have Phyrexian Metamorph enter the battlefield as a copy of any artifact or creature on the battlefield, except it's an artifact in addition to its other types.

You may have Sakashima the Impostor enter the battlefield as a copy of any creature on the battlefield, except its name is Sakashima the Impostor, it's legendary in addition to its other types, and it has "{2}{U}{U}: Return this creature to its owner's hand at the beginning of the next end step."

When Scourge of Fleets enters the battlefield, return each creature your opponents control with toughness X or less to its owner's hand, where X is the number of Islands you control.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) When Shipwreck Dowser enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

When Solemn Simulacrum enters the battlefield, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When Solemn Simulacrum dies, you may draw a card.

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.

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

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}.

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

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) Return target permanent to its owner's hand.

Target creature becomes blue until end of turn. Untap that creature. Draw a card.

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) Choose a counter on target permanent or suspended card. Remove that counter from that permanent or card or put another of those counters on it.

Choose two — • Counter target spell. • Return target permanent to its owner's hand. • Tap all creatures your opponents control. • Draw a card.

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.")

Target creature gets -3/-0 until end of turn. Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Choose one — • Tap target permanent. • Untap target permanent. Entwine {1} (Choose both if you pay the entwine cost.)

Tap target artifact, creature, or land. Draw a card at the beginning of the next turn's upkeep.

Exile target creature you control, then return that card to the battlefield under its owner's control. If it's a Spirit, put a +1/+1 counter on it.

Target creature gets -1/-0 until end of turn. Draw a card.

Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.

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.) Tap target permanent.

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

Target creature gains flying until end of turn. Draw a card.

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.

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.

Destroy target creature. It can't be regenerated. Its controller creates a 3/3 green Ape creature token.

Exile target artifact or creature. Its controller creates a 4/4 blue and red Elemental creature token.

Target creature gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.) Draw a card.

Target land becomes the basic land type of your choice until end of turn. Draw a card.

Return target creature to its owner's hand. Untap up to two lands.

Choose one or more — • Counter target spell. • Counter target activated or triggered ability. • Return target nonland permanent to its owner's hand. • Create a token that's a copy of target creature you control. • Target player draws a card.

Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.

Exile target permanent you control. Return that card to the battlefield under its owner's control at the beginning of the next end step. If it enters the battlefield as a creature, it enters with an additional +1/+1 counter on it.

Choose one — • Target nonsnow permanent becomes snow until end of turn. • Target snow permanent isn't snow until end of turn. Draw a card at the beginning of the next turn's upkeep.

You may tap or untap target artifact, creature, or land.

Switch target creature's power and toughness until end of turn. Draw a card.

Castle Vantress enters the battlefield tapped unless you control an Island. {T}: Add {U}. {2}{U}{U}, {T}: Scry 2.

Cloudpost enters the battlefield tapped. {T}: Add {C} for each Locus on the battlefield.

When Glimmerpost enters the battlefield, you gain 1 life for each Locus on the battlefield. {T}: Add {C}.

Myriad Landscape enters the battlefield tapped. {T}: Add {C}. {2}, {T}, Sacrifice Myriad Landscape: 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}.) Mystic Sanctuary enters the battlefield tapped unless you control three or more other Islands. When Mystic Sanctuary enters the battlefield untapped, you may put target instant or sorcery card from your graveyard on top of your library.

{T}: Add {C}. {2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents 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 {U}.)

When Sunscorched Desert enters the battlefield, it deals 1 damage to target player or planeswalker. {T}: Add {C}.

Put a flood counter on target land. That land is an Island in addition to its other types for as long as it has a flood counter on it. If you control a Merfolk, draw a card.

Devoid (This card has no color.) Target creature can't be blocked this turn. Draw a card.

Search your library for an instant or sorcery card, reveal it, put it into your hand, then shuffle.