msem-instigator

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)
Corym's Elite can't be blocked by creatures with power 2 or less.

Counter target noncreature spell unless its controller pays {2}.

At the beginning of your upkeep, return target creature card from your graveyard to the battlefield.

When Verdant Curtain Mascot enters, choose one —
• You gain 2 life.
• Proliferate. (Choose any number of permanents and/or players with counters on them, then give each another counter of each kind already there.)

Choose X. You may choose the same mode more than once.
• You gain 2 life.
• Create a 1/1 white Soldier creature token with vigilance.
• Exile target creature you control, then return it to the battlefield under its owner's control.

When Gharsha, Monstrous Quarry enters, each opponent creates a 1/1 green Elf creature token.
Whenever a creature you control becomes blocked, you may pay {1}. If you do, put a +1/+1 counter on that creature.

Enchant creature
When enchanted creature dies, return that card to the battlefield under your control.

Trample
{1}{R}: Each attacking creature you control with trample gets +1/+0 until end of turn.

Flying

Destroy target tapped creature.

Target creature gains indestructible until end of turn.
Draw a card.

Vitalhydra enters with twice X +1/+1 counters on it.
Each other creature you control enters with a number of additional +1/+1 counters on it equal to the number of +1/+1 counters on Vitalhydra.

Target player shuffles any number of target cards from their graveyard into their library.
Draw a card.

When Auramancer enters, you may return target enchantment card from your graveyard to your hand.

Persistent glitch {1}. Spend only mana of a color that hasn't been spent this way to activate this ability. ({1}: Permanently remove one [restriction] from this permanent.)
[+1]: You [and each opponent] may scry 2. Draw a card[, then discard a card.]
[–3]: Exile target nonland permanent [with mana value 4 or less]. [Its controller creates a Treasure token.]
[–6]: Create five 2/2 blue Elemental creature tokens with flying [and -1/-1 counters on them].

Library Specter can't attack unless there are five or more noncreature, nonland cards in your graveyard.

When Zoetic Tomb enters, exile target creature.
{4}: Until end of turn, Zoetic Tomb becomes a Golem artifact creature with power and toughness equal to the exiled creature's base power and toughness.

Whenever you foretell a card or cast a foretold spell, you draw a card and you lose 2 life.

{W}{B}{G}, Discard a card named Bahet, God of Destruction: Bahet gains indestructible and becomes a God creature in addition to its other types.
Whenever Bahet enters or attacks, each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players discard cards and sacrifice non-God creatures the same way.

Shock Blast deals X damage to target creature, where X is the number of instant and sorcery cards in your graveyard.

{T}: Add {U} or {B}.
{T}, Sacrifice Sigil of Malice: Add {U}{B}.

Equipped creature gets +5/+5.
Whenever equipped creature becomes blocked, destroy all other creatures.
Equip {5}

Kicker {1}{G} (You may pay an additional {1}{G} as you cast this spell.)
When Vigorous Tracker enters, if it was kicked, search your library for a land card, reveal it, put it into your hand, then shuffle.

Exile target creature with power 4 or greater.
Create a Treasure token. (It's an artifact with “{T}, Sacrifice this permanent: Add one mana of any color.”)