Whenever Acquisition Octopus or equipped creature deals combat damage to a player, draw a card.

Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Whenever this creature mutates, tap up to X target creatures, where X is the number of times this creature has mutated. Those creatures don't untap during their controller's next untap step.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Defender

When Biolume Egg enters the battlefield, scry 2.

When you sacrifice Biolume Egg, return it to the battlefield transformed under its owner's control at the beginning of the next end step.

When Bladecoil Serpent enters the battlefield, for each spent to cast it, draw a card.

When Bladecoil Serpent enters the battlefield, for each spent to cast it, each opponent discards a card.

When Bladecoil Serpent enters the battlefield, for each spent to cast it, it gets +1/+0 and gains trample and haste until end of turn.

When Brinelin, the Moon Kraken enters the battlefield and whenever you cast a spell with mana value 6 or greater, you may return target nonland permanent to its owner's hand.

Partner (You can have two commanders if both have partner.)

Noncreature spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting a noncreature spell pays for or one mana of that creature's color.)

At the beginning of your end step, untap up to four target creatures.

Spells your opponents cast that target Charix, the Raging Isle cost more to cast.

: Charix gets +X/-X until end of turn, where X is the number of Islands you control.

This spell costs less to cast for each instant and sorcery card in your graveyard.

Deep-Sea Serpent can't attack unless defending player controls an Island.

When Denizen of the Deep enters the battlefield, return each other creature you control to its owner's hand.

Dreamwinder can't attack unless defending player controls an Island.

, Sacrifice an Island: Target land becomes an Island until end of turn.

Flash

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)

When you cast this spell, tap up to four target permanents.

: Frilled Sea Serpent can't be blocked this turn.

Defender (This creature can't attack.)

When Grozoth enters the battlefield, you may search your library for any number of cards that have mana value 9, reveal them, put them into your hand, then shuffle.

: Grozoth loses defender until end of turn.

Transmute (, 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.)

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.

Trample

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Shroud (This creature can't be the target of spells or abilities.)

Trample

Jokulmorder enters the battlefield tapped.

When Jokulmorder enters the battlefield, sacrifice it unless you sacrifice five lands.

Jokulmorder doesn't untap during your untap step.

Whenever you play an Island, you may untap Jokulmorder.

When Kederekt Leviathan enters the battlefield, return all other nonland permanents to their owners' hands.

Unearth (: 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.)

Kukemssa Serpent can't attack unless defending player controls an Island.

, Sacrifice an Island: Target land an opponent controls becomes an Island until end of turn.

When you control no Islands, sacrifice Kukemssa Serpent.

Whenever Lorthos, the Tidemaker attacks, you may pay . If you do, tap up to eight target permanents. Those permanents don't untap during their controllers' next untap steps.

When Mesmerizing Benthid enters the battlefield, create two 0/2 blue Illusion creature tokens with "Whenever this creature blocks a creature, that creature doesn't untap during its controller's next untap step."

Mesmerizing Benthid has hexproof as long as you control an Illusion.

Whenever you draw a card, you may pay . If you do, put a +1/+1 counter on Nadir Kraken and create a 1/1 blue Tentacle creature token.

When Octoprophet enters the battlefield, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Trample

Polar Kraken enters the battlefield tapped.

Cumulative upkeep—Sacrifice a land. (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.)

River Serpent can't attack unless there are five or more cards in your graveyard.

Cycling (, Discard this card: Draw a card.)

Cycling (, Discard this card: Draw a card.)

Scrapdiver Serpent can't be blocked as long as defending player controls an artifact.

Sea Serpent can't attack unless defending player controls an Island.

When you control no Islands, sacrifice Sea Serpent.

Sealock Monster can't attack unless defending player controls an Island.

: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)

When Sealock Monster becomes monstrous, target land becomes an Island in addition to its other types.

Serpent of the Endless Sea's power and toughness are each equal to the number of Islands you control.

Serpent of the Endless Sea can't attack unless defending player controls an Island.

: Monstrosity 4. (If this creature isn't monstrous, put four +1/+1 counters on it and it becomes monstrous.)

When Shipbreaker Kraken becomes monstrous, tap up to four target creatures. Those creatures don't untap during their controllers' untap steps for as long as you control Shipbreaker Kraken.

Defender

Landfall — Whenever a land enters the battlefield under your control, Shoal Serpent loses defender until end of turn.

Flying

When Sky Swallower enters the battlefield, target opponent gains control of all other permanents you control.

Slipstream Serpent can't attack unless defending player controls an Island.

When you control no Islands, sacrifice Slipstream Serpent.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Whenever a Kraken, Leviathan, Octopus, or Serpent you control deals combat damage to a player, create a 9/9 blue Kraken creature token.

Steelclad Serpent can't attack unless you control another artifact.

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.

Sword Coast Serpent can't be blocked as long as you've cast a noncreature spell this turn.

The Watcher in the Water enters the battlefield tapped with nine stun counters on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Whenever you draw a card during an opponent's turn, create a 1/1 blue Tentacle creature token.

Whenever a Tentacle you control dies, untap up to one target Kraken and put a stun counter on up to one target nonland permanent.

Tidal Kraken can't be blocked.

Whenever you draw a card, you may pay . When you do, you may tap or untap target creature.

This spell costs less to cast for each instant and sorcery card in your graveyard.

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

Trample

When Trench Gorger enters the battlefield, you may search your library for any number of land cards, exile them, then shuffle. If you do, Trench Gorger has base power and base toughness each equal to the number of cards exiled this way.

Kicker <I>(You may pay an additional </I><I> as you cast this spell.)</I>

Vodalian Serpent can't attack unless defending player controls an Island.

If Vodalian Serpent was kicked, it enters the battlefield with four +1/+1 counters on it.

Companion — Your starting deck contains at least twenty cards more than the minimum deck size. (If this card is your chosen companion, you may put it into your hand from outside the game for as a sorcery.)

Flying

When Yorion enters the battlefield, exile any number of other nonland permanents you own and control. Return those cards to the battlefield at the beginning of the next end step.