msem-instigator

When Anointed General enters, if you control a legendary creature, Anointed General deals 4 damage to target creature you don't control.

Haste
When Caravan Engulfer enters, creatures you don't control can't block this turn.

Haste
Winnow (Damage dealt to this creature also causes you to lose that much life.)

First strike, trample
{2}{R}, Sacrifice a land: Corrignos' Rage gets +3/+0 until end of turn.

When Flameboon Alchemist dies, you may put a +1/+1 counter on target creature you control.

Menagerie — When Lurking Feralynx enters, if there are five or more creature types among creatures you control, you may search your library for a card named Lurking Feralynx, reveal it, put it into your hand, then shuffle.

Haste
When Magma Crawler enters, creatures you control with flash or haste get +1/+1 until end of turn.

Motivate 1 (When this creature enters, you may motivate target creature with less power than this by putting a +1/+1 counter on it.)
When Merthilios' Escort motivates a creature, that creature gains first strike until end of turn.

Menace
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Menace
Savage Stalker attacks each combat if able.

Flying, haste
Erratic (When this creature dies, reveal the top four cards of your library. Put a creature card that costs less than this revealed this way onto the battlefield and the rest on the bottom of your library in any order.)
When Splitflame Phoenix dies, you may pay {R}. If you do, return it to its owner's hand.

Haste
At the beginning of your end step, return Sunwatcher Aspirant to its owner's hand.

Defender

Reach
{T}: Yangzhi Cloudpiercer deals 1 damage to target player or planeswalker.

When Jade Empire Cartographer enters, choose one —
• Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
• Put a +1/+1 counter on target creature you control.

Glorious end — When Seeker of Conto Sika dies, if it was tapped, draw a card.

Each player mills five cards.
Coalesce {4}{U}{B} (You may cast this from your graveyard for {4}{U}{B}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)
Drink Thoughts Like Oil can't be blocked.

Faradia's Favored attacks each combat if able.
Whenever you pay a tithe, you may return Faradia's Favored from your graveyard to the battlefield.

Haste
When Magmatic Violator enters, target opponent sacrifices a creature.
At the beginning of the end step, sacrifice Magmatic Violator.

Haste
When Doomed Alchemist dies, create two Treasure tokens. (They're artifacts with “{T}, Sacrifice this artifact: Add one mana of any color.”)

Kanvar can't attack or block.
Whenever a creature you control with power 4 or greater dies, draw a card.
{R}{G}, {T}: Copy target triggered ability you control. You may choose new targets for the copy. (A triggered ability uses the words “when,” “whenever,” or “at.”)

{2}{W}: Audacious Knight gains first strike and vigilance until end of turn. (It deals combat damage before creatures without first strike. Attacking does not cause it to tap.)

Flying (This creature can't be blocked except by creatures with flying or reach.)
Motivate 1 (When this creature enters, you may motivate target creature with less power than this by putting a +1/+1 counter on it.)

When Coalition Apothecary enters, you gain 1 life for each nonland permanent you control.

First strike