msem-instigator

Embellish {4}{W} (If you cast this spell for {4}{W}, create a 1/1 blue Thopter artifact creature token with flying when it enters.)
Equipped creature gets +2/+2.
Whenever an artifact creature you control enters, you may attach Etherium Staff to it.
Equip {2}

When Ethersworn Elite enters, you gain 2 life and create two 1/1 blue Thopter artifact creature tokens with flying.
Cycling {2} ({2}, Discard this card: Draw a card.)

Enchant creature
You control enchanted creature.
Enchanted creature gets +1/+1 and is an artifact in addition to its other types.

Flying, vigilance
Whenever Etherwrought Figurehead attacks, you may pay 4 life. If you do, destroy target tapped creature.
If Etherwrought Figurehead would leave the battlefield, exile it instead.

Stampede — Whenever Etlan High Priest and a creature with greater power attack, Etlan High Priest gets +1/+1 until end of turn. Then you gain 1 life and scry 1.

Lifelink
Mirage {1}{W} (You may cast this spell as though it had flash for its mirage cost. If you do, sacrifice it at the beginning of the next cleanup step.)

Put a +1/+1 counter on target creature. That creature gains flying until end of turn. Untap it.

Return target artifact or enchantment card from your graveyard to your hand. You gain life equal to that card's mana value.

Exile target nonland permanent if its mana value is less than or equal to the greatest number of nonland permanents controlled by a single player.

When Evermind's Watch enters, conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)
Once each turn, when you activate a loyalty ability, you may create a Function token with its effects. (It's an enchantment. As you cast an instant or sorcery spell, sacrifice any number of Functions to add their effects to that spell.)

Flying, vigilance

When Everything Is Going Great enters, create a 4/4 Elemental creature token that's all colors.
At the beginning of your end step, exile up to one other target nonland permanent you control, then return it to the battlefield under your control.

Untap all creatures you control. They get +0/+2 until end of turn.

When Evigian Crusher enters, untap all creatures you control.
Orchestrate {1}{W}{W} (You may exile this card from your hand anytime you could cast a sorcery for its orchestrate cost. When you next resolve a spell, you may cast this from exile without paying its mana cost.)

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)
Whenever you gain life, you may pay {W}. If you do, transform Evigian Noble.

Vigilance
{W}{U}: Each creature you control assigns combat damage equal to its toughness rather than its power this turn.

Exile target creature or planeswalker. Its controller conjures a card named Data-Point into their hand. (It's a sorcery that costs {2} with “Draw a card.”)

First strike, vigilance, lifelink

When Exergetic Chains enters, exile target nonland permanent you don't control and up to one target creature you control until Exergetic Chains leaves the battlefield.

{1}: Put a -1/-1 counter on target creature you control. Untap that creature.

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Create three 1/1 Scout creature tokens that are all colors.

Exile target creature. Search its controller's graveyard and library for any number of cards with the same name as that creature and exile them. Then that player shuffles.

Return to your hand target creature card in your graveyard that was put there from anywhere this turn.
Create a 2/1 black Spirit creature token with “This creature can't block.”

Vigilance
When Expendable Victim dies, create a 1/1 colorless Construct Actor creature token.

Whenever another Avatar you control enters, upgrade it and Experienced Mentor. (Give each one of the listed counters it doesn't already have. Upgrades are independent.)
• +1/+1
• First strike
• Vigilance