Necroplasm

At the beginning of your upkeep, put a +1/+1 counter on Necroplasm.
At the beginning of your end step, destroy each creature with converted mana cost equal to the number of +1/+1 counters on Necroplasm.
Dredge 2 (If you would draw a card, you may mill two cards instead. If you do, return this card from your graveyard to your hand.)

Merfolk Skyscout

Flying
Whenever Merfolk Skyscout attacks or blocks, untap target permanent.

Avatar of Woe

If there are ten or more creature cards total in all graveyards, this spell costs less to cast.
Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)
: Destroy target creature. It can’t be regenerated.

Unmask

You may exile a black card from your hand rather than pay this spell’s mana cost.
Target player reveals their hand. You choose a nonland card from it. That player discards that card.

Ichorid

Haste
At the beginning of the end step, sacrifice Ichorid.
At the beginning of your upkeep, if Ichorid is in your graveyard, you may exile a black creature card other than Ichorid from your graveyard. If you do, return Ichorid to the battlefield.

Flame Jab

Flame Jab deals 1 damage to any target.
Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Primal Growth

Kicker—Sacrifice a creature. (You may sacrifice a creature in addition to any other costs as you cast this spell.)
Search your library for a basic land card, put that card onto the battlefield, then shuffle your library. If this spell was kicked, instead search your library for up to two basic land cards, put them onto the battlefield, then shuffle your library.

Victory’s Herald

Flying
Whenever Victory’s Herald attacks, attacking creatures gain flying and lifelink until end of turn.

Mighty Leap

Target creature gets +2/+2 and gains flying until end of turn.

Mighty Leap

Target creature gets +2/+2 and gains flying until end of turn.

Thrull Surgeon

, Sacrifice Thrull Surgeon: Look at target player’s hand and choose a card from it. That player discards that card. Activate this ability only any time you could cast a sorcery.

Mighty Leap

Target creature gets +2/+2 and gains flying until end of turn.

Simic Sky Swallower

Flying, trample
Shroud (This creature can’t be the target of spells or abilities.)

Faerie Macabre

Flying
Discard Faerie Macabre: Exile up to two target cards from graveyards.

Shaper Parasite

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When Shaper Parasite is turned face up, target creature gets +2/-2 or -2/+2 until end of turn.

Overseer of the Damned

Flying
When Overseer of the Damned enters the battlefield, you may destroy target creature.
Whenever a nontoken creature an opponent controls dies, create a tapped 2/2 black Zombie creature token.

Avatar of Hope

If you have 3 or less life, this spell costs less to cast.
Flying
Avatar of Hope can block any number of creatures.