msem-instigator

Create two 1/2 blue Bird creature tokens with flying.
Coalesce {5}{U}{U} (You may cast this from your graveyard for {5}{U}{U}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)

Whenever another enchantment you control enters, you may put a progress counter on Corporate War.
[progress 2-5] {W}{B}, Sacrifice a creature or enchantment: Destroy target creature or enchantment.
[progress 6+] Sacrifice a creature or enchantment: Destroy target permanent.
Sacrifice a creature or enchantment: Destroy target permanent.

{T}: Add {G}.
Concord — {T}: Add two mana in any combination of colors. Activate only if there are four or more card types among permanents you control.

This spell costs {1} less to cast for each Desert you control.
When Crested Crustacean enters, return target permanent to its owner's hand.

Flying
At the beginning of combat on your turn, create a 5/5 red Dragon creature token with flying and haste. That token attacks this combat if able.

Look at the top six cards of your library. For each permanent type, you may reveal a card of that type from among them and put it into your hand. Put the rest on the bottom of your library in any order.

At the beginning of your upkeep, mill a card.
{B}, Sacrifice Cruel Consultation: Exile any number of cards from your graveyard. Create an X/X black Djinn Horror creature token, where X is the number of card types among cards exiled this way.

Creatures you control get +4/+4 and gain trample until end of turn.
Coalesce {8}{G}{G} (You may cast this from your graveyard for {8}{G}{G}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)
Trample

When Curio Pavilion enters, create two Treasure tokens. (They're artifacts with “{T}, Sacrifice this artifact: Add one mana of any color.”)
Whenever an artifact you control leaves the battlefield, you may discard a card. If you do, draw a card.

At the beginning of your first upkeep each turn, choose one —
• Replace your first main phase this turn with an additional upkeep step.
• Replace your second main phase this turn with an additional combat phase.

At the beginning of your end step, you may put a progress counter on Custom Armaments.
[progress 1-3] Sacrifice Custom Armaments: Destroy target blocked creature.
[progress 4+] Sacrifice Custom Armaments: Exile up to two target blocked creatures.
Sacrifice CARDNAME: Exile up to two target blocked creatures.

Whenever equipped creature attacks, create a token that's a copy of it and that's tapped and attacking, except that token isn't legendary if equipped creature is legendary. Exile that token at end of combat.
Equip {3}

Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)
As long as Daring Cavalier is renowned, it has trample.

All creatures get -3/-2 until end of turn.
Coalesce {6}{B}{B} (You may cast this from your graveyard for {6}{B}{B}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)

Return up to one target creature card from a graveyard to the battlefield under your control.
Coalesce {9}{B} (You may cast this from your graveyard for {9}{B}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)
Indestructible

Target opponent reveals their hand. You choose a creature or sorcery card from it and exile that card.

You don't lose the game for having 0 or less life.
Whenever you're dealt damage, mill that many cards.
{B}, Pay 2 life: Put target card in your graveyard on the bottom of your library.

Counter target creature spell, planeswalker spell, or activated ability.

Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)
When Demolitionist Deviser dies, it deals damage equal to its power to any target.

Whenever a source you control deals damage to a creature or planeswalker an opponent controls, exile that creature or planeswalker.

Choose one —
• Target creature gets -2/-2 until end of turn.
• Remove up to two counters from target permanent.

{2}{B}, Sacrifice Determined Slayer: Exile up to three target cards from target player's graveyard. They lose that much life.

Equipped creature gets +2/+2 and has flying.
At the beginning of your upkeep, if Devised Battlesuit is attached to a non-Artificer creature, sacrifice Devised Battlesuit.
Equip {4}

If you control an artifact, create three 1/1 colorless Construct artifact creature tokens. Otherwise, create one of those tokens.

Until end of turn, target blocked creature you control gains trample and “Whenever this creature deals combat damage to a player, draw that many cards.”