Smog Elemental

Creature - Elemental

Flying

Creatures with flying your opponents control get -1/-1.

"The skies used to be my refuge, a place of peace away from the chaos below. Now, with every flight, death seems to follow me like a shadow."
-Writings of Cica, Skyjek scout

Merfolk of the Depths

Creature - Merfolk Soldier

Flash (You may cast this spell any time you could cast an instant.)

When giant sinkholes opened across Ravnica, they revealed buried oceans and the merfolk, once thought to be extinct.

Ruination Wurm

Creature - Wurm

When the architects of Ravnica claim a structure will stand against a wurm, they never mention for how long.

Ripscale Predator

Creature - Lizard

Ripscale Predator can't be blocked except by two or more creatures.

As Ravnica's wilds expanded, even advocates for nature had to confront fiercer natural threats.

Stolen Identity

Sorcery

Put a token onto the battlefield that's a copy of target artifact or creature.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Sylvan Primordial

Creature - Avatar

Reach

When Sylvan Primordial enters the battlefield, for each opponent, destroy target noncreature permanent that player controls. For each permanent destroyed this way, search your library for a Forest card and put that card onto the battlefield tapped. Then shuffle your library.

Diluvian Primordial

Creature - Avatar

Flying

When Diluvian Primordial enters the battlefield, for each opponent, you may cast up to one target instant or sorcery card from that player's graveyard without paying its mana cost. If a card cast this way would be put into a graveyard this turn, exile it instead.

Giant Adephage

Creature - Insect

Trample

Whenever Giant Adephage deals combat damage to a player, put a token onto the battlefield that's a copy of Giant Adephage.

"To a creature like that, we must seem like, well, bugs."
-Dars Gostok, Firefist captain

Lord of the Void

Creature - Demon

Flying

Whenever Lord of the Void deals combat damage to a player, exile the top seven cards of that player's library, then put a creature card from among them onto the battlefield under your control.

Gruul Ragebeast

Creature - Beast

Whenever Gruul Ragebeast or another creature enters the battlefield under your control, that creature fights target creature an opponent controls.

"If the other guilds want a war, they should know we've been ready the whole time."
-Ruric Thar, Ghor-Clan chieftain

Luminate Primordial

Creature - Avatar

Vigilance

When Luminate Primordial enters the battlefield, for each opponent, exile up to one target creature that player controls and that player gains life equal to its power.

Molten Primordial

Creature - Avatar

Haste

When Molten Primordial enters the battlefield, for each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain haste until end of turn.

Sepulchral Primordial

Creature - Avatar

Intimidate

When Sepulchral Primordial enters the battlefield, for each opponent, you may put up to one target creature card from that player's graveyard onto the battlefield under your control.

Borborygmos Enraged

Legendary Creature - Cyclops

Trample

Whenever Borborygmos Enraged deals combat damage to a player, reveal the top three cards of your library. Put all land cards revealed this way into your hand and the rest into your graveyard.

Discard a land card: Borborygmos Enraged deals 3 damage to target creature or player.

Skarrg Goliath

Creature - Beast

Trample

Bloodrush - , Discard Skarrg Goliath: Target attacking creature gets +9/+9 and gains trample until end of turn.

"They bind us with their laws. We free ourselves with nature's fist."
-Nikya of the Old Ways

Enter the Infinite

Sorcery

Draw cards equal to the number of cards in your library, then put a card from your hand on top of your library. You have no maximum hand size until your next turn.

"Don't just have an idea-have all of them."
-Niv-Mizzet