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.

Coldsteel Heart enters the battlefield tapped. As Coldsteel Heart enters the battlefield, choose a color. {T}: Add one mana of the chosen color.

{T}: Add one mana of any color in your commander's color identity. Sacrifice Commander's Sphere: Draw a card.

Corrupted Grafstone enters the battlefield tapped. {T}: Choose a color of a card in your graveyard. Add one mana of that color.

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

{2}, {T}, Sacrifice Expedition Map: Search your library for a land card, reveal it, put it into your hand, then shuffle.

{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 three mana of any one color.

When Mana Geode enters the battlefield, scry 1. {T}: Add one mana of any color.

{T}: Add one mana of any color.

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

At the beginning of each player's upkeep, that player puts a flood counter on target non-Island land they control of their choice. That land is an Island for as long as it has a flood counter on it. At the beginning of each end step, if all lands on the battlefield are Islands, remove all flood counters from them.

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

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

Each player may play an additional land during each of their turns. Whenever a land is tapped for mana, return it to its owner's hand.

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

When Kederekt Leviathan enters the battlefield, return all other nonland permanents to their owners' hands. Unearth {6}{U} ({6}{U}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Flying {1}, Return a land you control to its owner's hand: Create a 1/1 blue Illusion creature token with flying.

This spell can't be countered. You have no maximum hand size. Whenever an opponent casts a noncreature spell, draw a card. Discard three cards: Exile Nezahal, Primal Tide. Return it to the battlefield tapped under its owner's control at the beginning of the next end step.

Moonfolk offering (You may cast this card any time you could cast an instant by sacrificing a Moonfolk and paying the difference in mana costs between this and the sacrificed Moonfolk. Mana cost includes color.) Flying {1}: Put up to two land cards from your hand onto the battlefield tapped.

{T}: Add {U}.

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.) When Slinn Voda, the Rising Deep enters the battlefield, if it was kicked, return all creatures to their owners' hands except for Merfolk, Krakens, Leviathans, Octopuses, and Serpents.

Flying {3}, Return a land you control to its owner's hand: Target creature you control gains shroud until end of turn. (It can't be the target of spells or abilities.)

Islandwalk (This creature can't be blocked as long as defending player controls an Island.) All lands are Islands in addition to their other types. Creatures without flying or islandwalk can't attack.

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.

Flying {2}, Return two lands you control to their owner's hand: Copy target instant or sorcery spell. You may choose new targets for the copy.

At the beginning of your upkeep, put a time counter on As Foretold. Once each turn, you may pay {0} rather than pay the mana cost for a spell you cast with mana value X or less, where X is the number of time counters on As Foretold.

Whenever a player casts a spell, that player returns a land they control to its owner's hand.

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

Whenever a player puts a nontoken creature onto the battlefield, that player returns a land they control to its owner's hand.

Landfall — Whenever a land enters the battlefield under your control, choose one — • You may tap or untap target creature. • Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

As Shimmer enters the battlefield, choose a land type. Each land of the chosen type has phasing. (It phases in or out before its controller untaps during each of their untap steps. While it's phased out, it's treated as though it doesn't exist.)

Indestructible As long as your devotion to blue is less than five, Thassa isn't a creature. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.) At the beginning of your upkeep, scry 1. {1}{U}: Target creature you control can't be blocked this turn.

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

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

Draw two cards. Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this 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.")

Counter target instant spell.

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

Return all creatures to their owners' hands.

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.

You may discard an Island card and another card rather than pay this spell's mana cost. Counter target spell.

You may return two Islands you control to their owner's hand rather than pay this spell's mana cost. Draw two cards.

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

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.

Draw three cards.

Counter target noncreature spell.

Target player draws four cards.

Draw X cards, then discard a card.

Return all lands to their owners' hands.

({T}: Add {U}.)

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.

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

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

{T}: Add {C}. {2}, {T}: You may put a basic land card from your hand onto the battlefield tapped.

Return all nonland permanents with mana value X or less to their owners' hands.

Return all nonblue creatures to their owners' hands.

Return all nonland permanents target player controls to their owner's hand.