msem-instigator

Flying
Whenever Pale Courier deals combat damage to a player, it voyages. (If it isn't blocking or targeted by another spell or ability, it phases out.)
Whenever Pale Courier phases in, create a 1/1 white Dwarf creature token.

Exile each creature you control. Return those cards to the battlefield under their owner's control at the beginning of the next end step.

Creatures you control have haste and attack each combat if able.
Attacking Soldiers you control get +1/+0.

Abandoned Meadow enters tapped if you control another nonbasic land.
{T}: Add {R} or {G}.

{T}: Look at the top card of your library. If it's a land card, you may reveal it and put it into your hand.
Crew 2 (Tap any number of creatures you control with total power 2 or greater: This Vehicle becomes an artifact creature until end of turn.)

Creatures you control get +1/+0 and gain haste until end of turn.

Lifelink
When Seeker of Lost Secrets leaves the battlefield, you may pay 2 life. If you do, search your library for a card, put that card into your hand, then shuffle.

Flash
When Threadripper Savant enters, put a stun counter on up to one target creature.

When Coralight Champion enters, create a white Aura enchantment token named Hila's Favor attached to target creature. The token has enchant creature and “Enchanted creature has double strike as long as there's another Aura attached to it. Otherwise, it has first strike.”

When this creature enters, you may exile target non-Cat creature you control. Return that card to the battlefield under its owner's control at the beginning of the next end step.
Arise {3}{W} ({3}{W}, Exile this from your graveyard as a sorcery: Create a black token copy of it that's also a Zombie and can't block.)

Hexproof
When Elusive Devout enters, choose one —
• Put a +1/+1 counter on Elusive Devout.
• Create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

Survivors you control have haste.

Mill three cards, then return an artifact or creature card from your graveyard to your hand.

Equipped creature gets +1/+0 and has “Whenever this creature deals combat damage to a player, draw a card.”
Equip {3}

Whenever you draw a card except for the first one you draw in each of your draw steps, each opponent loses 1 life.

Haste (This creature can attack and {T} as soon as it comes under your control.)
{1}{U}: Balloon Dragoon gains flying until end of turn.

Once each turn, when you cast a noncreature spell, create a 1/1 colorless Human creature token. Put a prowess counter on it.

Choose one —
• Return target permanent card from your graveyard to your hand.
• Destroy target artifact or enchantment.

When this creature enters, you may sacrifice a creature. If you do, you draw a card and you lose 1 life.
Arise {2}{B} ({2}{B}, Exile this from your graveyard as a sorcery: Create a black token copy of it that's also a Zombie and can't block.)

Each player chooses one card in their hand, then discards the rest.

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Disastrous Sirocco deals damage to target creature equal to the number of lands you control.

Whenever a creature dealt damage by Slave Child this turn dies, you may pay {B}. If you do, transform Slave Child.

Trample
When Moranai Outriders enters, if it's not a token, create a token that's a copy of it, except it has no mana cost.

Counter target noncreature spell with an odd mana value. (Zero is even.)

Flying
Crew 2
Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
As long as you're in a renaissance, Lunar Shachuan is an artifact creature.