{2}, {T}: Put a charge counter on Blue Mana Battery. {T}, Remove any number of charge counters from Blue Mana Battery: Add {U}, then add an additional {U} for each charge counter removed this way.

{T}: Add {U}. Sacrifice Eye of Ramos: Add {U}.

{T}: Add one mana of any color that a land an opponent controls could produce.

{T}: Add {C}. {1}, {T}, Sacrifice Mind Stone: Draw a card.

Whenever you cast an instant or sorcery spell, you may pay {3}. If you do, copy that spell. You may choose new targets for the copy.

Sky Diamond enters the battlefield tapped. {T}: Add {U}.

As Sol Grail enters the battlefield, choose a color. {T}: Add one mana of the chosen color.

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

Star Compass enters the battlefield tapped. {T}: Add one mana of any color that a basic land you control could produce.

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

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

{U}{U}, {T}: Gain control of target legendary permanent. (This effect lasts indefinitely.)

Defender (This creature can't attack.) When Floodgate has flying, sacrifice it. When Floodgate leaves the battlefield, it deals damage equal to half the number of Islands you control, rounded down, to each nonblue creature without flying.

Flying Fylamarid can't be blocked by blue creatures. {U}: Target creature becomes blue until end of turn.

{U}: Tap target green creature.

{1}{U}, {T}: Put target green creature on top of its owner's library.

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.

{T}: Add {C}.

{T}: Draw a card, then discard a card.

Protection from red

Flying When Palinchron enters the battlefield, untap up to seven lands. {2}{U}{U}: Return Palinchron to its owner's hand.

{T}, Sacrifice Rootwater Diver: Return target artifact card from your graveyard to your hand.

{T}: Rootwater Hunter deals 1 damage to any target.

When Scrivener enters the battlefield, you may return target instant card from your graveyard to your hand.

{T}: Add {C}. {1}, {T}: Add {U}.

{U}{U}, {T}: Target creature phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before its controller untaps during their next untap step.)

Cumulative upkeep {U} (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.) Green creatures have "Cumulative upkeep {1}."

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

Creatures don't untap during their controllers' untap steps. At the beginning of each player's upkeep, that player may choose any number of tapped nongreen creatures they control and pay {2} for each creature chosen this way. If the player does, untap those creatures.

Cumulative upkeep {2} (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.) As Illusionary Terrain enters the battlefield, choose two basic land types. Basic lands of the first chosen type are the second chosen type.

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}.

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

Cumulative upkeep {U} (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 Island is tapped for mana, its controller may add an additional {U}. If that Island is snow, its controller may add an additional {U}{U} instead. Spend this mana only to pay cumulative upkeep costs.

Cumulative upkeep {2} (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.) Pay 2 life or {2}: Counter target red or green spell. Any player may activate this ability.

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.

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.

Choose one — • Destroy target red permanent. • Return target Mountain to its owner's hand.

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

Choose one — • Counter target spell if it's red. • Destroy target permanent if it's red.

Draw a card for each attacking creature.

Target player draws four cards.

Scry 1. Draw a card.

Choose a card name, then target player mills a card. If a card with the chosen name was milled this way, you draw two cards. Otherwise, you draw a card.

Target player draws X cards.

Buyback {5} (You may pay an additional {5} as you cast this spell. If you do, put this card into your hand as it resolves.) Draw a card.

Cast this spell only during combat before blockers are declared. X can't be greater than the number of snow lands you control. Choose X target attacking creatures. For each of those creatures, its controller may pay {1} or {2}. If that player doesn't, destroy that creature at end of combat. If that player pays only {1}, prevent all combat damage that would be dealt to and dealt by that creature this combat.

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

Destroy all Forests.

Target player draws X cards.

Draw three cards.

Target player draws two cards. Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Each player shuffles their hand and graveyard into their library. You exile the top ten cards of your library. Then each player draws up to seven cards.

Return target sorcery card from your graveyard to your hand.

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

Return target instant or sorcery card from your graveyard to your hand.

Return target sorcery card from your graveyard to your hand.

Return target creature to its owner's hand. Draw a card.

Draw a card for each tapped creature target opponent controls.