Floodtide Serpent

Creature - Serpent

Floodtide Serpent can't attack unless you return an enchantment you control to its owner's hand. (This cost is paid as attackers are declared.)

"Pray to Thassa for what? A bigger monster to eat it? A wave that can wash it away? What then?"
-Lindos, merchant of Meletis

Kraken of the Straits

Creature - Kraken

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

Thassa felt no need to punish the sailors for their folly in crossing the straits. The kraken would do it for her.

Meletis Astronomer

Creature - Human Wizard

Heroic - Whenever you cast a spell that targets Meletis Astronomer, look at the top three cards of your library. You may reveal an enchantment card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Mindreaver

Creature - Human Wizard

Heroic - Whenever you cast a spell that targets Mindreaver, exile the top three cards of target player's library.

, Sacrifice Mindreaver: Counter target spell with the same name as a card exiled with Mindreaver.

Brimaz, King of Oreskos

Legendary Creature - Cat Soldier

Vigilance

Whenever Brimaz, King of Oreskos attacks, put a 1/1 white Cat Soldier creature token with vigilance onto the battlefield attacking.

Whenever Brimaz blocks a creature, put a 1/1 white Cat Soldier creature token with vigilance onto the battlefield blocking that creature.

Siren of the Fanged Coast

Creature - Siren

Flying

Tribute 3 (As this creature enters the battlefield, an opponent of your choice may place three +1/+1 counters on it.)

When Siren of the Fanged Coast enters the battlefield, if tribute wasn't paid, gain control of target creature.

Sphinx's Disciple

Creature - Human Wizard

Flying

Inspired - Whenever Sphinx's Disciple becomes untapped, draw a card.

Few dare to brave the Dakra Isles. Those who return are forever changed.

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.)

Vortex Elemental

Creature - Elemental

: Put Vortex Elemental and each creature blocking or blocked by it on top of their owners' libraries, then those players shuffle their libraries.

: Target creature blocks Vortex Elemental this turn if able.

The sea is always hungry.

Ashiok's Adept

Creature - Human Wizard

Heroic - Whenever you cast a spell that targets Ashiok's Adept, each opponent discards a card.

"Every nightmare is a caged bird that yearns to be set free."
-Ashiok, Nightmare Weaver

Black Oak of Odunos

Creature - Zombie Treefolk

Defender

, Tap another untapped creature you control: Black Oak of Odunos gets +1/+1 until end of turn.

Phenax promised the newly dead souls they would be spared from Erebos. In this, he did not lie.

Champion of Stray Souls

Creature - Skeleton Warrior

, , Sacrifice X other creatures: Return X target creature cards from your graveyard to the battlefield.

: Put Champion of Stray Souls on top of your library from your graveyard.

Eater of Hope

Creature - Demon

Flying

, Sacrifice another creature: Regenerate Eater of Hope.

, Sacrifice two other creatures: Destroy target creature.

Gods can be appeased. Demons, however . . .

Felhide Brawler

Creature - Minotaur

Felhide Brawler can't block unless you control another Minotaur.

Burial rites among the Felhide minotaurs involve devouring those who fell in battle, to remove their shame from memory and to fuel the survivors' revenge.

Forlorn Pseudamma

Creature - Zombie

Intimidate

Inspired - Whenever Forlorn Pseudamma becomes untapped, you may pay . If you do, put a 2/2 black Zombie enchantment creature token onto the battlefield.

"More children taken. This is an evil we will track without mercy."
-Anthousa of Setessa

Forsaken Drifters

Creature - Zombie

When Forsaken Drifters dies, put the top four cards of your library into your graveyard.

It is a terrible thing when the path of the Returned leads them back to the Underworld.

Marshmist Titan

Creature - Giant

Marshmist Titan costs less to cast, where X is your devotion to black. (Each in the mana costs of permanents you control counts toward your devotion to black.)

A favorite of Erebos, for it has sent many to the Underworld.

Odunos River Trawler

Creature - Zombie

When Odunos River Trawler enters the battlefield, return target enchantment creature card from your graveyard to your hand.

, Sacrifice Odunos River Trawler: Return target enchantment creature card from your graveyard to your hand.

Elite Skirmisher

Creature - Human Soldier

Heroic - Whenever you cast a spell that targets Elite Skirmisher, you may tap target creature.

Some adopted the tactics of the leonin to combat the ferocity of the minotaurs.

Pain Seer

Creature - Human Wizard

Inspired - Whenever Pain Seer becomes untapped, reveal the top card of your library and put that card into your hand. You lose life equal to that card's converted mana cost.

Every twitching nerve and pulsing vein carries a message, discernible with the right tools.

Servant of Tymaret

Creature - Zombie

Inspired - Whenever Servant of Tymaret becomes untapped, each opponent loses 1 life. You gain life equal to the life lost this way.

: Regenerate Servant of Tymaret.

Life is most precious to those who have already lost it.

Shrike Harpy

Creature - Harpy

Flying

Tribute 2 (As this creature enters the battlefield, an opponent of your choice may place two +1/+1 counters on it.)

When Shrike Harpy enters the battlefield, if tribute wasn't paid, target opponent sacrifices a creature.

Warchanter of Mogis

Creature - Minotaur Shaman

Inspired - Whenever Warchanter of Mogis becomes untapped, target creature you control gains intimidate until end of turn. (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Akroan Conscriptor

Creature - Human Shaman

Heroic - Whenever you cast a spell that targets Akroan Conscriptor, gain control of another target creature until end of turn. Untap that creature. It gains haste until end of turn.

"The time to serve is now."

Cyclops of One-Eyed Pass

Creature - Cyclops

The Champion armed herself to face the cyclops, heedless of her companions' despair.
"How will you defeat it with only one spear?" asked young Althemone.
The Champion raised her weapon. "It has but one eye."
-The Theriad

Felhide Spiritbinder

Creature - Minotaur Shaman

Inspired - Whenever Felhide Spiritbinder becomes untapped, you may pay . If you do, put a token onto the battlefield that's a copy of another target creature except it's an enchantment in addition to its other types. It gains haste. Exile it at the beginning of the next end step.

Flame-Wreathed Phoenix

Creature - Phoenix

Flying

Tribute 2 (As this creature enters the battlefield, an opponent of your choice may place two +1/+1 counters on it.)

When Flame-Wreathed Phoenix enters the battlefield, if tribute wasn't paid, it gains haste and "When this creature dies, return it to its owner's hand."

Forgestoker Dragon

Creature - Dragon

Flying

: Forgestoker Dragon deals 1 damage to target creature. That creature can't block this combat. Activate this ability only if Forgestoker Dragon is attacking.

The Akroans fashion their helms to honor the dragons, not to protect against them, as that would be of little help.

Impetuous Sunchaser

Creature - Human Soldier

Flying, haste

Impetuous Sunchaser attacks each turn if able.

"I will soar higher than the walls of Akros! Higher than the clouds! Higher than Heliod himself!"