Prey Upon

Target creature you control fights target creature you don’t control. (Each deals damage equal to its power to the other.)

Shiv’s Embrace

Enchant creature
Enchanted creature gets +2/+2 and has flying.
: Enchanted creature gets +1/+0 until end of turn.

Gruul War Chant

Attacking creatures you control get +1/+0 and have menace.

Feral Animist

: Feral Animist gets +X/+0 until end of turn, where X is its power.

Scourge Devil

When Scourge Devil enters the battlefield, creatures you control get +1/+0 until end of turn.
Unearth (: 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.)

Vithian Stinger

: Vithian Stinger deals 1 damage to any target.
Unearth (: 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.)

Skullcrack

Players can’t gain life this turn. Damage can’t be prevented this turn. Skullcrack deals 3 damage to target player or planeswalker.

Alpha Authority

Enchant creature
Enchanted creature has hexproof and can’t be blocked by more than one creature.

Gruul Ragebeast

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

Signal the Clans

Search your library for three creature cards and reveal them. If you reveal three cards with different names, choose one of them at random and put that card into your hand. Shuffle the rest into your library.

Curse of Thirst

Enchant player
At the beginning of enchanted player’s upkeep, Curse of Thirst deals damage to that player equal to the number of Curses attached to them.

Calciderm

Shroud (This creature can’t be the target of spells or abilities.)
Vanishing 4 (This creature enters the battlefield with four time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

Pillar of Flame

Pillar of Flame deals 2 damage to any target. If a creature dealt damage this way would die this turn, exile it instead.

Ghor-Clan Rampager

Trample
Bloodrush — , Discard Ghor-Clan Rampager: Target attacking creature gets +4/+4 and gains trample until end of turn.

Rakdos Cackler

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can’t block as long as it has a +1/+1 counter on it.)

Karrthus, Tyrant of Jund

Flying, haste
When Karrthus, Tyrant of Jund enters the battlefield, gain control of all Dragons, then untap all Dragons.
Other Dragon creatures you control have haste.

Grisly Salvage

Reveal the top five cards of your library. You may put a creature or land card from among them into your hand. Put the rest into your graveyard.

Soul Tithe

Enchant nonland permanent
At the beginning of the upkeep of enchanted permanent’s controller, that player sacrifices it unless they pay , where X is its converted mana cost.

Batterhorn

When Batterhorn enters the battlefield, you may destroy target artifact.

Gravecrawler

Gravecrawler can’t block.
You may cast Gravecrawler from your graveyard as long as you control a Zombie.

Drowned Catacomb

Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp.
: Add or .