You may play an additional land on each of your turns.
Landfall -- Whenever a land enters the battlefield under your control, you may draw a card.
5 /
5
{5}{U}{U}
Aethersquall Ancient
Creature - Leviathan
Flying
At the beginning of your upkeep, you get {E}{E}{E} (three energy counters).
Pay eight {E}: Return all other creatures to their owners' hands. Activate only as a sorcery.
6 /
6
{2}{G}{U}
Arixmethes, Slumbering Isle
Legendary Creature - Kraken
Arixmethes, Slumbering Isle enters the battlefield tapped with five slumber counters on it.
As long as Arixmethes has a slumber counter on it, it's a land. (It's not a creature.)
Whenever you cast a spell, you may remove a slumber counter from Arixmethes.
{T}: Add {G}{U}.
12 /
12
{2}{U}{U}
Bident of Thassa
Legendary Enchantment Artifact
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.
--
Boseiju, Who Endures
Legendary Land
{T}: Add {G}.
Channel -- {1}{G}, Discard Boseiju, Who Endures: Destroy target artifact, enchantment, or nonbasic land an opponent controls. That player may search their library for a land card with a basic land type, put it onto the battlefield, then shuffle. This ability costs {1} less to activate for each legendary creature you control.
{3}{G}
Brawn
Creature - Incarnation
Trample
As long as Brawn is in your graveyard and you control a Forest, creatures you control have trample.
3 /
3
{2}{U}{U}
Charix, the Raging Isle
Legendary Creature - Leviathan Crab
Spells your opponents cast that target Charix, the Raging Isle cost {2} more to cast.
{3}: Charix gets +X/-X until end of turn, where X is the number of Islands you control.
0 /
17
{1}{G/U}{G/U}
Cold-Eyed Selkie
Creature - Merfolk Rogue
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
Whenever Cold-Eyed Selkie deals combat damage to a player, you may draw that many cards.
1 /
1
{U}{U}
Counterspell
Instant
Counter target spell.
{4}{U}{U}
Crush of Tentacles
Sorcery
Surge {3}{U}{U} (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.)
Return all nonland permanents to their owners' hands. If this spell's surge cost was paid, create an 8/8 blue Octopus creature token.
{3}{U}
Crystacean
Creature - Crab
Flash
1 /
6
{7}{U}{U}{U}
Deep-Sea Kraken
Creature - Kraken
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.
6 /
6
{1}{U}{U}
Dissolve
Instant
Counter target spell. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
--
Dreamroot Cascade
Land
Dreamroot Cascade enters the battlefield tapped unless you control two or more other lands.
{T}: Add {G} or {U}.
{8}
Elder Deep-Fiend
Creature - Eldrazi Octopus
Flash
Emerge {5}{U}{U} (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.
5 /
6
{2}{G}
Entish Restoration
Instant
Sacrifice a land. Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle. If you control a creature with power 4 or greater, instead search your library for up to three basic land cards, put them onto the battlefield tapped, then shuffle.
{X}{G}{G}
Finale of Devastation
Sorcery
Search your library and/or graveyard for a creature card with mana value X or less and put it onto the battlefield. If you search your library this way, shuffle. If X is 10 or more, creatures you control get +X/+X and gain haste until end of turn.
{3}{U}{U}
Forceful Denial
Instant
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)
Counter target spell.
{2}{G}
Garruk's Uprising
Enchantment
When Garruk's Uprising enters the battlefield, if you control a creature with power 4 or greater, draw a card.
Creatures you control have trample. (They can deal excess combat damage to the player or planeswalker they're attacking.)
Whenever a creature with power 4 or greater enters the battlefield under your control, draw a card.
{5}
Gilded Lotus
Artifact
{T}: Add three mana of any one color.
{2}{G}{G}
Greater Good
Enchantment
Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.
{G}{U}
Growth Spiral
Instant
Draw a card. You may put a land card from your hand onto the battlefield.
{2}{G}
Harrow
Instant
As an additional cost to cast this spell, sacrifice a land.
Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.
--
Hinterland Harbor
Land
Hinterland Harbor enters the battlefield tapped unless you control a Forest or an Island.
{T}: Add {G} or {U}.
{10}{U}{U}
Icebreaker Kraken
Snow Creature - Kraken
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.
8 /
8
{3}{G}{U}
Imoti, Celebrant of Bounty
Legendary Creature - Naga Druid
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)
Spells you cast with mana value 6 or greater have cascade.
3 /
1
{G}{G}
In Search of Greatness
Enchantment
At the beginning of your upkeep, you may cast a permanent spell from your hand with mana value equal to 1 plus the highest mana value among other permanents you control without paying its mana cost. If you don't, scry 1.
{7}{U}{U}
Inkwell Leviathan
Artifact Creature - Leviathan
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.)
7 /
11
{6}{U}{U}
Kederekt Leviathan
Creature - Leviathan
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.)
5 /
5
{1}{U}
Kenessos, Priest of Thassa
Legendary Creature - Merfolk Cleric
If you would scry a number of cards, scry that many cards plus one instead.
{3}{G/U}: Look at the top card of your library. If it's a Kraken, Leviathan, Octopus, or Serpent creature card, you may put it onto the battlefield. If you don't put the card onto the battlefield, you may put it on the bottom of your library.
1 /
3
{5}{U}{U}
Kiora Bests the Sea God
Enchantment - Saga
(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.
{5}{U}
Kiora's Dambreaker
Creature - Leviathan
When Kiora's Dambreaker enters the battlefield, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
5 /
6
{G}{U}
Kiora's Follower
Creature - Merfolk
{T}: Untap another target permanent.
2 /
2
{2}{G/U}
Kiora, Behemoth Beckoner
Legendary Planeswalker - Kiora
Whenever a creature with power 4 or greater enters the battlefield under your control, draw a card.
-1: Untap target permanent.
L:
7
{2}{G}{U}
Kiora, Master of the Depths
Legendary Planeswalker - Kiora
+1: Untap up to one target creature and up to one target land.
-2: Reveal the top four cards of your library. You may put a creature card and/or a land card from among them into your hand. Put the rest into your graveyard.
-8: You get an emblem with "Whenever a creature enters the battlefield under your control, you may have it fight target creature." Then create three 8/8 blue Octopus creature tokens.
L:
4
{3}{G}{U}
Kiora, Sovereign of the Deep
Legendary Creature - Merfolk Noble
Vigilance, ward {3}
Whenever you cast a Kraken, Leviathan, Octopus, or Serpent spell from your hand, look at the top X cards of your library, where X is that spell's mana value. You may cast a spell with mana value less than X from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.
4 /
5
{2}{G}{U}
Kiora, the Crashing Wave
Legendary Planeswalker - Kiora
+1: Until your next turn, prevent all damage that would be dealt to and dealt by target permanent an opponent controls.
-1: Draw a card. You may play an additional land this turn.
-5: You get an emblem with "At the beginning of your end step, create a 9/9 blue Kraken creature token."
L:
2
{3}{G}{G}{U}{U}
Koma, Cosmos Serpent
Legendary Creature - Serpent
This spell can't be countered.
At the beginning of each upkeep, create a 3/3 blue Serpent creature token named Koma's Coil.
Sacrifice another Serpent: Choose one --
• Tap target permanent. Its activated abilities can't be activated this turn.
• Koma, Cosmos Serpent gains indestructible until end of turn.
6 /
6
--
Littjara Mirrorlake
Land
Littjara Mirrorlake enters the battlefield tapped.
{T}: Add {U}.
{2}{G}{G}{U}, {T}, Sacrifice Littjara Mirrorlake: Create a token that's a copy of target creature you control, except it enters the battlefield with an additional +1/+1 counter on it. Activate only as a sorcery.
{5}{U}{U}{U}
Lorthos, the Tidemaker
Legendary Creature - Octopus
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.
8 /
8
{3}{G}{ // }{2}{G}
Monster Manual // Zoological Study
Artifact // Sorcery - Adventure
{1}{G}, {T}: You may put a creature card from your hand onto the battlefield.
Mill five cards, then return a creature card milled this way to your hand. (Then exile this card. You may cast the artifact later from exile.)
{4}{U}
Monstrosity of the Lake
Legendary Creature - Kraken
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.)
4 /
6
{2}{G}{U}{U}
Moritte of the Frost
Legendary Snow Creature - Shapeshifter
Changeling (This card is every creature type.)
You may have Moritte of the Frost enter the battlefield as a copy of a permanent you control, except it's legendary and snow in addition to its other types and, if it's a creature, it enters with two additional +1/+1 counters on it and has changeling.
0 /
0
{5}{U}{U}
Nezahal, Primal Tide
Legendary Creature - Elder Dinosaur
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.
7 /
7
{G}{G}{U}{U}
Plasm Capture
Instant
Counter target spell. At the beginning of your next precombat main phase, add X mana in any combination of colors, where X is that spell's mana value.
{3}{U}
Reef Worm
Creature - Worm
When Reef Worm dies, create a 3/3 blue Fish creature token with "When this creature dies, create a 6/6 blue Whale creature token with 'When this creature dies, create a 9/9 blue Kraken creature token.'"
0 /
1
--
Rejuvenating Springs
Land
Rejuvenating Springs enters the battlefield tapped unless you have two or more opponents.
{T}: Add {G} or {U}.
{4}{G}
Return of the Wildspeaker
Instant
Choose one --
• Draw cards equal to the greatest power among non-Human creatures you control.
• Non-Human creatures you control get +3/+3 until end of turn.
--
Rimewood Falls
Snow Land - Forest Island
({T}: Add {G} or {U}.)
Rimewood Falls enters the battlefield tapped.
--
Rogue's Passage
Land
{T}: Add {C}.
{4}, {T}: Target creature can't be blocked this turn.
{4}{U}{U}
Serpent of Yawning Depths
Enchantment Creature - Serpent
Krakens, Leviathans, Octopuses, and Serpents you control can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents.
6 /
6
{4}{U}{U}
Shipbreaker Kraken
Creature - Kraken
{6}{U}{U}: 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.
6 /
6
{4}{U}
Shoal Kraken
Creature - Kraken
Constellation -- Whenever an enchantment enters the battlefield under your control, you may draw a card. If you do, discard a card.
3 /
5
{6}{U}{U}
Slinn Voda, the Rising Deep
Legendary Creature - Leviathan
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.
8 /
8
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Forest
Basic Snow Land - Forest
({T}: Add {G}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{5}{U}
Spawning Kraken
Creature - Kraken
Whenever a Kraken, Leviathan, Octopus, or Serpent you control deals combat damage to a player, create a 9/9 blue Kraken creature token.
6 /
6
{3}{U}{U}
Stormsurge Kraken
Creature - Kraken
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."
5 /
5
{2}
Sword of the Animist
Legendary Artifact - Equipment
Equipped creature gets +1/+1.
Whenever equipped creature attacks, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Equip {2}
{3}{G}{U}
Tatyova, Benthic Druid
Legendary Creature - Merfolk Druid
Landfall -- Whenever a land enters the battlefield under your control, you gain 1 life and draw a card.
3 /
3
--
Temple of the False God
Land
{T}: Add {C}{C}. Activate only if you control five or more lands.
{2}{U}
Thassa, God of the Sea
Legendary Enchantment Creature - God
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.
5 /
5
{7}{G}{G}
The Great Henge
Legendary Artifact
This spell costs {X} less to cast, where X is the greatest power among creatures you control.
{T}: Add {G}{G}. You gain 2 life.
Whenever a nontoken creature enters the battlefield under your control, put a +1/+1 counter on it and draw a card.
{6}{U}{U}{U}
The Magic Mirror
Legendary Artifact
This spell costs {1} less to cast for each instant and sorcery card in your graveyard.
You have no maximum hand size.
At the beginning of your upkeep, put a knowledge counter on The Magic Mirror, then draw a card for each knowledge counter on The Magic Mirror.
{2}
Thought Vessel
Artifact
You have no maximum hand size.
{T}: Add {C}.
{3}{U}{U}
Tolarian Contempt
Enchantment
When Tolarian Contempt enters the battlefield, put a rejection counter on each creature your opponents control.
At the beginning of your end step, for each opponent, choose up to one target creature they control with a rejection counter on it. That creature's owner puts it on the top or bottom of their library.
{5}{U}{U}
Tromokratis
Legendary Creature - Kraken
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.)
8 /
8
{1}{G}{U}
Troyan, Gutsy Explorer
Legendary Creature - Vedalken Scout
{T}: Add {G}{U}. Spend this mana only to cast spells with mana value 5 or greater or spells with {X} in their mana costs.
{U}, {T}: Draw a card, then discard a card.
1 /
3
{3}{G}{U}
Urban Evolution
Sorcery
Draw three cards. You may play an additional land this turn.
{3}{U}{U}
Voracious Greatshark
Creature - Shark
Flash
When Voracious Greatshark enters the battlefield, counter target artifact or creature spell.
5 /
4
{2}{U}{U}
Whelming Wave
Sorcery
Return all creatures to their owners' hands except for Krakens, Leviathans, Octopuses, and Serpents.
{3}{U}
Wonder
Creature - Incarnation
Flying
As long as Wonder is in your graveyard and you control an Island, creatures you control have flying.
2 /
2
{5}{G}{G}
Zendikar Resurgent
Enchantment
Whenever you tap a land for mana, add one mana of any type that land produced. (The types of mana are white, blue, black, red, green, and colorless.)
Whenever you cast a creature spell, draw a card.
{G}
Bushwhack
Sorcery
Choose one --
• Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
• Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)
{1}{G}
Druid Class
Enchantment - Class
(Gain the next level as a sorcery to add its ability.)
Landfall -- Whenever a land enters the battlefield under your control, you gain 1 life.
{2}{G}: Level 2
You may play an additional land on each of your turns.
{4}{G}: Level 3
When this Class becomes level 3, target land you control becomes a creature with haste and "This creature's power and toughness are each equal to the number of lands you control." It's still a land.
{G}{U}
Ride the Avalanche
Instant
The next spell you cast this turn can be cast as though it had flash. When you next cast a spell this turn, put X +1/+1 counters on up to one target creature, where X is the mana value of that spell.
{G}{G}{G}
Tribute to the World Tree
Enchantment
Whenever a creature enters the battlefield under your control, draw a card if its power is 3 or greater. Otherwise, put two +1/+1 counters on it.