Theros

{2}{G}: Loathsome Catoblepas must be blocked this turn if able. When Loathsome Catoblepas dies, target creature an opponent controls gets -3/-3 unt...

Whenever another creature dies, tap Fleshmad Steed.

When Disciple of Phenax enters the battlefield, target player reveals a number of cards from their hand equal to your devotion to black. You choose...

Bestow {5}{B} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attache...

Target creature gets +2/+0 until end of turn. Regenerate it. You lose 2 life.

Destroy target attacking or blocking creature.

Flying When Blood-Toll Harpy enters the battlefield, each player loses 1 life.

Bestow {4}{B} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attache...

Heroic — Whenever you cast a spell that targets Wavecrash Triton, tap target creature an opponent controls. That creature doesn't untap during its ...

Return target creature to its owner's hand. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Flying Vaporkin can block only creatures with flying.

Draw three cards. Target player puts the top three cards of their library into their graveyard.

Counter target spell unless its controller pays {1}. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your lib...

Flying Whenever you cast an instant or sorcery spell, scry 1. (Look at the top card of your library. You may put that card on the bottom of your li...

When Omenspeaker enters the battlefield, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your libr...

Bestow {4}{U} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attache...

Target creature gets -3/-0 until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Put target creature on top of its owner's library.

Enchant creature When Fate Foretold enters the battlefield, draw a card. When enchanted creature dies, its controller draws a card.

{2}{R}, Sacrifice Crackling Triton: It deals 2 damage to any target.

Flying {1}{W}: Coastline Chimera can block an additional creature this turn.

Flash (You may cast this spell any time you could cast an instant.) When Breaching Hippocamp enters the battlefield, untap another target creature ...