Chittering Harvester

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Whenever this creature mutates, each opponent sacrifices a creature.

Death’s Oasis

Whenever a nontoken creature you control dies, mill two cards. Then return a creature card with lesser converted mana cost than the creature that died from your graveyard to your hand.
, Sacrifice Death’s Oasis: You gain life equal to the highest converted mana cost among creatures you control.

Greater Sandwurm

Greater Sandwurm can’t be blocked by creatures with power 2 or less.
Cycling (, Discard this card: Draw a card.)

Death’s Oasis

Whenever a nontoken creature you control dies, mill two cards. Then return a creature card with lesser converted mana cost than the creature that died from your graveyard to your hand.
, Sacrifice Death’s Oasis: You gain life equal to the highest converted mana cost among creatures you control.

Death’s Oasis

Whenever a nontoken creature you control dies, mill two cards. Then return a creature card with lesser converted mana cost than the creature that died from your graveyard to your hand.
, Sacrifice Death’s Oasis: You gain life equal to the highest converted mana cost among creatures you control.

Nikara, Lair Scavenger

Partner with Yannik, Scavenging Sentinel (When this creature enters the battlefield, target player may put Yannik into their hand from their library, then shuffle.)
Menace
Whenever another creature you control leaves the battlefield, if it had one or more counters on it, you draw a card and you lose 1 life.

Yannik, Scavenging Sentinel

Partner with Nikara, Lair Scavenger
Vigilance
When Yannik, Scavenging Sentinel enters the battlefield, exile another creature you control until Yannik leaves the battlefield. When you do, distribute X +1/+1 counters among any number of target creatures, where X is the exiled creature’s power.

Howling Golem

Whenever Howling Golem attacks or blocks, each player draws a card.

Lord of the Accursed

Other Zombies you control get +1/+1.
, : All Zombies gain menace until end of turn.

Torment of Hailfire

Repeat the following process X times. Each opponent loses 3 life unless that player sacrifices a nonland permanent or discards a card.

Lord of the Accursed

Other Zombies you control get +1/+1.
, : All Zombies gain menace until end of turn.

Torbran, Thane of Red Fell

If a red source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.

Torbran, Thane of Red Fell

If a red source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.

Torbran, Thane of Red Fell

If a red source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.

Torbran, Thane of Red Fell

If a red source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.

Alela, Artful Provocateur

Flying, deathtouch, lifelink
Other creatures you control with flying get +1/+0.
Whenever you cast an artifact or enchantment spell, create a 1/1 blue Faerie creature token with flying.

Octoprophet

When Octoprophet enters the battlefield, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Drakuseth, Maw of Flames

Flying
Whenever Drakuseth, Maw of Flames attacks, it deals 4 damage to any target and 3 damage to each of up to two other targets.

Barkhide Troll

Barkhide Troll enters the battlefield with a +1/+1 counter on it.
, Remove a +1/+1 counter from Barkhide Troll: Barkhide Troll gains hexproof until end of turn. (It can’t be the target of spells or abilities your opponents control.)

Drakuseth, Maw of Flames

Flying
Whenever Drakuseth, Maw of Flames attacks, it deals 4 damage to any target and 3 damage to each of up to two other targets.

Drakuseth, Maw of Flames

Flying
Whenever Drakuseth, Maw of Flames attacks, it deals 4 damage to any target and 3 damage to each of up to two other targets.

Howling Giant

Reach (This creature can block creatures with flying.)
When Howling Giant enters the battlefield, create two 2/2 green Wolf creature tokens.