Bone Shredder

Flying
Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Bone Shredder enters the battlefield, destroy target nonartifact, nonblack creature.

Anthroplasm

Anthroplasm enters the battlefield with two +1/+1 counters on it.
, : Remove all +1/+1 counters from Anthroplasm and put X +1/+1 counters on it.

Skittering Skirge

Flying
When you cast a creature spell, sacrifice Skittering Skirge.

Terror

Destroy target nonartifact, nonblack creature. It can’t be regenerated.

Pyrokinesis

You may exile a red card from your hand rather than pay this spell’s mana cost.
Pyrokinesis deals 4 damage divided as you choose among any number of target creatures.

Goblin Grenade

As an additional cost to cast this spell, sacrifice a Goblin.
Goblin Grenade deals 5 damage to any target.

Phyrexian Processor

As Phyrexian Processor enters the battlefield, pay any amount of life.
, : Create an X/X black Minion creature token, where X is the life paid as Phyrexian Processor entered the battlefield.

Angelic Chorus

Whenever a creature enters the battlefield under your control, you gain life equal to its toughness.

Sporogenesis

At the beginning of your upkeep, you may put a fungus counter on target nontoken creature.
Whenever a creature with a fungus counter on it dies, create a 1/1 green Saproling creature token for each fungus counter on that creature.
When Sporogenesis leaves the battlefield, remove all fungus counters from all creatures.

Ravenous Skirge

Flying
Whenever Ravenous Skirge attacks, it gets +2/+0 until end of turn.

Yawgmoth’s Will

Until end of turn, you may play lands and cast spells from your graveyard.
If a card would be put into your graveyard from anywhere this turn, exile that card instead.

Fault Line

Fault Line deals X damage to each creature without flying and each player.

Lightning Dragon

Flying
Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
: Lightning Dragon gets +1/+0 until end of turn.

Vebulid

Vebulid enters the battlefield with a +1/+1 counter on it.
At the beginning of your upkeep, you may put a +1/+1 counter on Vebulid.
When Vebulid attacks or blocks, destroy it at end of combat.

Skittering Skirge

Flying
When you cast a creature spell, sacrifice Skittering Skirge.

Carrion Beetles

, : Exile up to three target cards from a single graveyard.

Hermetic Study

Enchant creature
Enchanted creature has “: This creature deals 1 damage to any target.”

Lightning Dragon

Flying
Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
: Lightning Dragon gets +1/+0 until end of turn.

Hammer of Bogardan

Hammer of Bogardan deals 3 damage to any target.
: Return Hammer of Bogardan from your graveyard to your hand. Activate this ability only during your upkeep.

Squirrel Farm

: Reveal a card in your hand, covering the artist credit. Target opponent guesses the artist. If they guess wrong, create a 1/1 green Squirrel creature token.

Infernal Spawn of Evil

Flying, first strike
, Reveal Infernal Spawn of Evil from your hand, Say “It’s coming!”: Infernal Spawn of Evil deals 1 damage to target opponent or planeswalker. Activate this ability only during your upkeep and only once each turn.