Unstable Mutation

Enchant creature
Enchanted creature gets +3/+3.
At the beginning of the upkeep of enchanted creature’s controller, put a -1/-1 counter on that creature.

Fissure

Destroy target creature or land. It can’t be regenerated.

Triskelion

Triskelion enters the battlefield with three +1/+1 counters on it.
Remove a +1/+1 counter from Triskelion: It deals 1 damage to any target.

Drain Life

Spend only black mana on X.
Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player’s life total before the damage was dealt, the planeswalker’s loyalty before the damage was dealt, or the creature’s toughness.

Drain Power

Target player activates a mana ability of each land they control. Then that player loses all unspent mana and you add the mana lost this way.

Marsh Gas

All creatures get -2/-0 until end of turn.

Dwarven Soldier

Whenever Dwarven Soldier blocks or becomes blocked by one or more Orcs, Dwarven Soldier gets +0/+2 until end of turn.

Icatian Scout

, : Target creature gains first strike until end of turn.

Icatian Infantry

: Icatian Infantry gains first strike until end of turn.
: Icatian Infantry gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature’s combat damage, not its controller, among any of the creatures it’s being blocked by or is blocking.)

Homarid Spawning Bed

, Sacrifice a blue creature: Create X 1/1 blue Camarid creature tokens, where X is the sacrificed creature’s converted mana cost.

Orcish Veteran

Orcish Veteran can’t block white creatures with power 2 or greater.
: Orcish Veteran gains first strike until end of turn.

River Merfolk

: River Merfolk gains mountainwalk until end of turn. (It can’t be blocked as long as defending player controls a Mountain.)

Homarid Warrior

: Homarid Warrior gains shroud until end of turn and doesn’t untap during your next untap step. Tap Homarid Warrior. (A creature with shroud can’t be the target of spells or abilities.)

Whippoorwill

, : Target creature can’t be regenerated this turn. Damage that would be dealt to that creature this turn can’t be prevented or dealt instead to another permanent or player. When the creature dies this turn, exile the creature.

Mana Vortex

When you cast this spell, counter it unless you sacrifice a land.
At the beginning of each player’s upkeep, that player sacrifices a land.
When there are no lands on the battlefield, sacrifice Mana Vortex.

Marsh Gas

All creatures get -2/-0 until end of turn.

Fissure

Destroy target creature or land. It can’t be regenerated.

Fasting

At the beginning of your upkeep, put a hunger counter on Fasting. Then destroy Fasting if it has five or more hunger counters on it.
If you would begin your draw step, you may skip that step instead. If you do, you gain 2 life.
When you draw a card, destroy Fasting.

Righteousness

Target blocking creature gets +7/+7 until end of turn.

Animate Artifact

Enchant artifact
As long as enchanted artifact isn’t a creature, it’s an artifact creature with power and toughness each equal to its converted mana cost.