msem-instigator

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Whenever another creature you control dies, put a +1/+1 counter on Carnage Gorger.

Whenever you gain life, Clerics you control get +1/+1 and gain trample until end of turn.

Flash
When Caronas, Eon Wanderer enters, you gain 2 life and draw two cards if Caronas, Eon Wanderer isn't on the battlefield.
{2}{W}{U}, Discard two cards: Aetherize Caronas. (To aetherize, create a token that's a copy of it, then exile that token.)

Flash (You may cast this spell any time you could cast an instant.)
Flying
Tapped creatures you control have hexproof.

When Carrion Gourmet enters, each player sacrifices a creature.
Whenever another creature dies, put a +1/+1 counter on Carrion Gourmet.

This spell costs {1} less to cast for each creature card in your graveyard.
Trample

When Carrion Sculptor enters, create a 2/2 black Zombie creature token.
{2}{B}, Sacrifice a creature: Return target creature card from your graveyard to your hand.
{1}{B}, Exile Carrion Sculptor from your graveyard: Create a tapped 2/2 black Zombie creature token.

When Carrion Scythe enters, if you cast it, you may return target creature card from your graveyard to the battlefield, then attach Carrion Scythe to it.
Equipped creature gets +1/+1 and has deathtouch.
Equip {2}

{3}, {T}: Return target creature card from your graveyard to the battlefield under target player's control. That creature deals damage equal to its power to that player.

Equipped creature gets +1/+1 for each differently named land you control.
Equip {3}

I, II — Scry 2.
Discovery — Whenever a land you control enters, if it doesn't have the same name as another land you control, draw a card.

{2}: Carven Guardian gains reach until end of turn.

Choose one —
• You draw two cards and you lose 2 life.
• Target player discards two cards and you gain 2 life.

Flash
Flying

Glitch {1} (Remove one [restriction] for each time you pay the glitch cost.)
Each opponent loses 3 life, discards a card, sacrifices a creature, then sacrifices a land.
[You lose 3 life.] [Discard a card.] [Sacrifice a creature.] [Sacrifice a land.]

If a source would deal damage to a creature in Cascading Zhenzu's pack, prevent 1 of that damage. (Two or more creatures you control with equal power are in a pack.)
{U}: You may switch Cascading Zhenzu's power and toughness until end of turn.

Survivors you control have lifelink.

Wander {2}{W}{W} (You may cast this from the battlefield for its wander cost.)
[–1]: Create a 1/1 white Bird creature token with flying or a 2/2 black Cat creature token.
[–2]: If a permanent entering the battlefield under your control this turn causes an ability of a permanent you control to trigger, that ability triggers an additional time.
[–3]: Put a +1/+1 counter on each creature you control.

Choose one —
• Cast Judgment deals 3 damage to target attacking creature.
• Exile target artifact or enchantment.

Flash
When Cast Out enters, exile target nonland permanent an opponent controls until Cast Out leaves the battlefield.
Cycling {W} ({W}, Discard this card: Draw a card.)

Reveal cards from the top of your library until you reveal a card with a lesser mana value than the previous card, then put all cards revealed this way into your hand.

Casualty of War deals 4 damage to target creature or planeswalker.
{2}{R}{R}, Exile Casualty of War from your graveyard: Arm up to two target creatures you control. Activate only as a sorcery. (Create a colorless Equipment artifact token with “Equipped creature gets +1/+0” and equip {2}, then attach it to that creature.)

Tithe (When this creature enters, you may tap three other artifacts and/or creatures you control.)
When Cataclysmic Preacher's tithe is paid, return target instant or sorcery card from your graveyard to your hand.

Flying, haste
When Cataclysmic Skytyrant enters, sacrifice all other non-Dragon creatures you control. For each creature sacrificed this way, create a 3/3 red Dragon creature token with flying.