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

Deep-Sea Kraken can't be blocked.

Suspend 9— (Rather than cast this card from your hand, you may pay and exile it with nine time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may 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.

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

When Icebreaker Kraken 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 Icebreaker Kraken to its owner's hand.

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

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.

Trample, ward

At the beginning of each combat, if Reservoir Kraken is untapped, any opponent may tap an untapped creature they control. If they do, tap Reservoir Kraken and create a 1/1 blue Fish creature token with "This creature can't be blocked."

Constellation — Whenever an enchantment you control enters, you may draw a card. If you do, discard a card.

Hexproof

Lieutenant — As long as you control your commander, Stormsurge Kraken gets +2/+2 and has "Whenever Stormsurge Kraken becomes blocked, you may draw two cards."

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