When Biblioplex Kraken enters the battlefield, scry 3. (Look at the top three cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Whenever Biblioplex Kraken attacks, you may return another creature you control to its owner's hand. If you do, Biblioplex Kraken can't be blocked this turn.

When Breaching Leviathan enters the battlefield, if you cast it from your hand, tap all nonblue creatures. Those creatures don't untap during their controllers' next untap steps.

When Brinelin, the Moon Kraken enters the battlefield or 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.)

You may have Clever Impersonator enter the battlefield as a copy of any nonland permanent on the battlefield.

You may have Copy Artifact enter the battlefield as a copy of any artifact on the battlefield, except it's an enchantment in addition to its other types.

Deep-Sea Kraken can't be blocked.

Suspend 9--{2}{U} (Rather than cast this card from your hand, you may pay {2}{U} and exile it with nine time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost. It has haste.)

Whenever an opponent casts a spell, if Deep-Sea Kraken is suspended, remove a time counter from it.

At the beginning of your upkeep, create a token that's a copy of another target nonland permanent you control.

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.

{4}: Grozoth loses defender 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.)

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.

This spell costs {1} less to cast for each snow land you control.

When Icebreaker Kraken enters the battlefield, 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 Icebreaker Kraken to its owner's hand.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I -- Create an 8/8 blue Kraken creature token with hexproof.

II -- Tap all nonland permanents target opponent controls. They don't untap during their controller's next untap step.

III -- Gain control of target permanent an opponent controls. Untap it.

Creatures with power less than the number of Islands you control can't block Kraken of the Straits.

Whenever a player casts a blue spell, you may gain 1 life.

{2}, {T}: Copy target activated or triggered ability you control. You may choose new targets for the copy.

{3}, {T}: Copy target instant or sorcery spell you control. You may choose new targets for the copy.

{4}, {T}: Copy target permanent spell you control. (The copy becomes a token.)

Whenever Lorthos, the Tidemaker attacks, you may pay {8}. If you do, tap up to eight target permanents. Those permanents don't untap during their controllers' next untap steps.

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.)

Return target nonland permanent and each other nonland permanent with the same mana value as that permanent to their owners' hands.

When Monstrosity of the Lake enters the battlefield, you may pay {5}. If you do, tap all creatures your opponents control, then put a stun counter on each of those creatures. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Islandcycling {2} ({2}, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)

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

This spell costs {8} less to cast if you have eight or more instant and/or sorcery cards in your graveyard.

Ward {8}

Magecraft -- Whenever you cast or copy an instant or sorcery spell, target creature has base power and toughness 8/8 until end of turn.

Whenever you draw a card, put a foreshadow counter on Ominous Seas.

Remove eight foreshadow counters from Ominous Seas: Create an 8/8 blue Kraken creature token.

Cycling {2} ({2}, Discard this card: Draw a card.)

At the beginning of your upkeep, you may look at the top card of your library. If it's a creature card, you may reveal it and put a quest counter on Quest for Ula's Temple.

At the beginning of each end step, if there are three or more quest counters on Quest for Ula's Temple, you may put a Kraken, Leviathan, Octopus, or Serpent creature card from your hand onto the battlefield.

Demonstrate (When you cast this spell, you may copy it. If you do, choose an opponent to also copy it. Players may choose new targets for their copies.)

Create a token that's a copy of target permanent you control.

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.

This spell can't be copied.

Choose one. If an opponent has eight or more cards in their graveyard, you may choose both.

• Copy target spell. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.)

• Create a token that's a copy of target creature.

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

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.

Return a land you control to its owner's hand: Untap Trench Behemoth. It gains hexproof until end of turn.

Landfall -- Whenever a land enters the battlefield under your control, target creature an opponent controls attacks during its controller's next combat phase if able.

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.