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

Whenever a creature you control deals combat damage to a player, you may draw a card. {1}{U}, {T}: Creatures your opponents control attack this turn if able.

You have no maximum hand size. {T}: Add one mana of any color.

{3}, {T}, Sacrifice a creature: Reveal a number of cards from the top of your library equal to the sacrificed creature's power. Put one into your hand and exile the rest.

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

Equipped creature gets +3/+2. Whenever a legendary creature you control enters, you may attach this Equipment to it. Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery.)

Equipped creature gets +2/+1. As long as equipped creature is legendary, it has trample and haste. Equip {2}

Blue creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, target creature an opponent controls doesn't untap during its controller's next untap step.

{T}: Add {U}. {2}{U}: Put an hour counter on this artifact. At the beginning of each upkeep, put an hour counter on this artifact. When the twelfth hour counter is put on this artifact, shuffle your hand and graveyard into your library, then draw seven cards. Exile this artifact.

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

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.

The "legend rule" doesn't apply.

This artifact enters tapped. {T}: Add {U}.

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

{2}, Sacrifice a snow land: Prevent all combat damage that would be dealt this turn.

Whenever a creature you control with power equal to its toughness enters, you may pay {1}. If you do, draw a card.

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

{2}, {T}, Sacrifice this artifact: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

When this creature enters, you may draw cards equal to its power. If you do, discard two cards. Eternalize {5}{U}{U} ({5}{U}{U}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Snake Wizard with no mana cost. Eternalize only as a sorcery.)

Whenever you draw a card, put a +1/+1 counter on this creature. When this creature dies, create X 1/1 blue Squid creature tokens with islandwalk, where X is the number of +1/+1 counters on this creature. (They can't be blocked as long as defending player controls an Island.)

Whenever you discard a card, you may exile that card from your graveyard. If you do, you may play that card this turn.

Flying As an additional cost to cast blue permanent spells, you may pay 2 life. Those spells cost {U} less to cast if you paid life this way. This effect reduces only the amount of blue mana you pay. Whenever you cast a blue permanent spell, draw a card.

{S}, {T}: Look at the top card of your library. If it's a snow card, you may reveal it and put it into your hand. ({S} can be paid with one mana from a snow source.)

Whenever another snow permanent you control enters, you may have target player mill two cards.

Affinity for snow lands (This spell costs {1} less to cast for each snow land you control.) When this creature enters, artifacts and creatures target opponent controls don't untap during that player's next untap step. Return three snow lands you control to their owner's hand: Return this creature to its owner's hand.

Exploit (When this creature enters, you may sacrifice a creature.) When this creature exploits a creature, return to their owners' hands all creatures your opponents control with toughness less than the exploited creature's toughness.

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life.

When this creature enters, 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.

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

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

When this creature enters, you may exchange control of target creature you control and target creature with power less than or equal to that creature's power an opponent controls.

Tromokratis has hexproof unless it's attacking or blocking. Tromokratis can't be blocked unless all creatures defending player controls block it. (If any creature that player controls doesn't block this creature, it can't be blocked.)

Whenever you cast a blue spell, target player mills two cards.

(Gain the next level as a sorcery to add its ability.) Whenever a creature you control enters, surveil 1. {1}{U}: Level 2 Whenever you attack, target attacking creature with power 3 or less can't be blocked this turn. {3}{U}: Level 3 Whenever a creature you control deals combat damage to a player, you may exile it, then return it to the battlefield under its owner's control.

Enchant creature, land, or planeswalker Enchanted permanent is a colorless land with "{T}: Add {C}" and loses all other card types and abilities.

Return all attacking creatures to their owner's hand.

Exile target creature you control, then return that card to the battlefield under its owner's control. Draw a card.

Surveil 1. (Look at the top card of your library. You may put it into your graveyard.) Draw a card.

Counter target spell.

Counter target spell unless its controller pays {2}. If they do, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

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

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.

Draw a card for each Island you control, then discard two cards.

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

Return target creature to its owner's hand. Ferocious — If you control a creature with power 4 or greater, you may draw a card. If you do, discard a card.

Draw two cards, then discard two cards. Untap up to three lands.

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

Counter target noncreature spell.

Draw a card. Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Exile target creature. Its controller manifests the top card of their library. (That player puts the top card of their library onto the battlefield face down as a 2/2 creature. If it's a creature card, it can be turned face up any time for its mana cost.)

Counter target spell unless its controller pays {X}, where X is the greatest power among creatures you control.

Counter target noncreature spell unless its controller pays {1}. Ferocious — If you control a creature with power 4 or greater, counter that spell instead.

Draw three cards. Then discard two cards unless you discard a basic land card.

{T}: Add {C}. {3}, {T}: Draw a card. Activate only if you control a creature with power 4 or greater.

This land enters tapped unless you control an Island. {T}: Add {U}. {2}{U}{U}, {T}: Scry 2.

{T}: Add {U}. This land deals 1 damage to you. Threshold — {U}, {T}, Sacrifice this land: Target player draws three cards, then discards three cards. Activate only if seven or more cards are in your graveyard.

This land enters tapped. {T}: Add {U}. Cycling {U} ({U}, Discard this card: Draw a card.)

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}.)

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.)

Exile target artifact or creature. Its controller creates a 1/1 blue Bird creature token with flying. Foretell {U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Draw three cards.