Dormant Gomazoa

Flying
Dormant Gomazoa enters tapped.
Dormant Gomazoa doesn't untap during your untap step.
Whenever you become the target of a spell, you may untap Dormant Gomazoa.

Bloodthorn Taunter

Haste
{T}: Target creature with power 5 or greater gains haste until end of turn.

Kraken Hatchling

Master of the Pearl Trident

Other Merfolk creatures you control get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)

River Boa

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
{G}: Regenerate River Boa.

Gomazoa

Defender, flying
{T}: Put Gomazoa and each creature it's blocking on top of their owners' libraries, then those players shuffle.

Into the Wilds

At the beginning of your upkeep, look at the top card of your library. If it's a land card, you may put it onto the battlefield.

Gnarlid Pack

Multikicker {1}{G} (You may pay an additional {1}{G} any number of times as you cast this spell.)
Gnarlid Pack enters with a +1/+1 counter on it for each time it was kicked.

Mwonvuli Beast Tracker

When Mwonvuli Beast Tracker enters, search your library for a creature card with deathtouch, hexproof, reach, or trample and reveal it. Shuffle and put that card on top.

Harbor Serpent

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
Harbor Serpent can't attack unless there are five or more Islands on the battlefield.

Serpent of the Endless Sea

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.

Merfolk Observer

When Merfolk Observer enters, look at the top card of target player's library.

Primal Huntbeast

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Surrakar Spellblade

Whenever you cast an instant or sorcery spell, you may put a charge counter on Surrakar Spellblade.
Whenever Surrakar Spellblade deals combat damage to a player, you may draw X cards, where X is the number of charge counters on it.

Beastmaster Ascension

Whenever a creature you control attacks, you may put a quest counter on Beastmaster Ascension.
As long as Beastmaster Ascension has seven or more quest counters on it, creatures you control get +5/+5.

Stormtide Leviathan

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.

Baloth Cage Trap

If an opponent had an artifact enter the battlefield under their control this turn, you may pay {1}{G} rather than pay this spell's mana cost.
Create a 4/4 green Beast creature token.

Sylvan Ranger

When Sylvan Ranger enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Irresistible Prey

Target creature must be blocked this turn if able.
Draw a card.

Back to Nature

Spined Wurm

Colossal Whale

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
Whenever Colossal Whale attacks, you may exile target creature defending player controls until Colossal Whale leaves the battlefield. (That creature returns under its owner's control.)

Stomper Cub

Territorial Baloth

Landfall — Whenever a land you control enters, Territorial Baloth gets +2/+2 until end of turn.

Augur of Bolas

When Augur of Bolas enters, look at the top three cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Briarpack Alpha

Flash (You may cast this spell any time you could cast an instant.)
When Briarpack Alpha enters, target creature gets +2/+2 until end of turn.

Guard Gomazoa

Defender, flying
Prevent all combat damage that would be dealt to Guard Gomazoa.

Centaur Courser

Craw Wurm

Amphin Cutthroat

Surrakar Banisher

When Surrakar Banisher enters, you may return target tapped creature to its owner's hand.

Bull Rush

Target creature gets +2/+0 until end of turn.

Deadly Recluse

Reach (This creature can block creatures with flying.)
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Witchstalker

Hexproof (This creature can't be the target of spells or abilities your opponents control.)
Whenever an opponent casts a blue or black spell during your turn, put a +1/+1 counter on Witchstalker.

Alluring Siren

{T}: Target creature an opponent controls attacks you this turn if able.

Rumbling Baloth

Merfolk Mesmerist

Cudgel Troll

{G}: Regenerate Cudgel Troll. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Scroll Thief

Whenever Scroll Thief deals combat damage to a player, draw a card.

Brindle Boar

Merfolk Spy

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
Whenever Merfolk Spy deals combat damage to a player, that player reveals a card at random from their hand.

Obstinate Baloth

When Obstinate Baloth enters, you gain 4 life.
If a spell or ability an opponent controls causes you to discard Obstinate Baloth, put it onto the battlefield instead of putting it into your graveyard.

Leatherback Baloth

Emerald Oryx

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Hedron Crab

Landfall — Whenever a land you control enters, target player mills three cards.

Roaring Primadox

At the beginning of your upkeep, return a creature you control to its owner's hand.

Great Sable Stag

This spell can't be countered.
Protection from blue and from black (This creature can't be blocked, targeted, dealt damage, or enchanted by anything blue or black.)

Hunters' Feast

Any number of target players each gain 6 life.

Flinthoof Boar

Flinthoof Boar gets +1/+1 as long as you control a Mountain.
{R}: Flinthoof Boar gains haste until end of turn. (It can attack and {T} this turn.)

Baloth Woodcrasher

Landfall — Whenever a land you control enters, Baloth Woodcrasher gets +4/+4 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Beast Hunt

Reveal the top three cards of your library. Put all creature cards revealed this way into your hand and the rest into your graveyard.

Thragtusk

When Thragtusk enters, you gain 5 life.
When Thragtusk leaves the battlefield, create a 3/3 green Beast creature token.

Merfolk Seastalkers

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
{2}{U}: Tap target creature without flying.

Grappler Spider

Reach (This creature can block creatures with flying.)

Dungrove Elder

Hexproof (This creature can't be the target of spells or abilities your opponents control.)
Dungrove Elder's power and toughness are each equal to the number of Forests you control.

Wrexial, the Risen Deep

Islandwalk, swampwalk (This creature can't be blocked as long as defending player controls an Island or a Swamp.)
Whenever Wrexial, the Risen Deep deals combat damage to a player, you may cast target instant or sorcery card from that player's graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead.

Terra Stomper

This spell can't be countered.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)