msem-instigator

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
Whenever a creature you control with a +1/+1 counter on it deals combat damage to a player, arm that creature. (Create a colorless Equipment artifact token with “Equipped creature gets +1/+0” and equip {2}, then attach it to that creature.)

Harmony — Creatures you control get +1/+0 and gain vigilance until end of turn.
When Plume de Val Singer enters, harmonize. (Trigger up to one harmony of one permanent you control.)

Mill X cards. Then you may return a creature card with mana value X or less from your graveyard to the battlefield.

If a player has lost life this turn, this spell has flash and can't be countered.
Destroy target tapped creature.

When Poisonblade Herald enters, put a -1/-1 counter on a creature you control.

{B}{G}, {T}, Remove a -1/-1 counter from a creature you control: Create a 1/1 green Elf Druid creature token.

Flash
Excess damage Polarity Sage would deal to an attacking creature is dealt to that creature's controller instead.

When Political Opportunist enters, you may shuffle the cards from your hand into your library, then draw that many cards.

Vigilance, trample
{5}{R}{G}: Monstrosity 4. (If this creature isn't monstrous, put four +1/+1 counters on it and it becomes monstrous.)

(Activate each submodule once as a sorcery. When this enters, activate one submodule for free.)
Flash
{2}{W}: Prioritize
Put two +1/+1 counters on target tapped creature.
{2}{U}: Precipitate
Look at the top six cards of your library. Exile one face down, then shuffle. For as long as that card is exiled, you may cast it if it's an instant or has flash.
{1}{W}{U}: Process
Precognition Module gains “Whenever you cast another spell with flash or an instant, surveil 2.”

Flying
Cards in graveyards lose all names, card types, and abilities.
Spells and abilities your opponents control can't cause you to sacrifice Manticores.

Creatures you control gain deathtouch until end of turn and must be blocked this turn if able.

When Presence of the Unknown enters, you may sacrifice a creature. When you do, exile target nonland permanent.
Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.

When Press-Gang Recruiter enters, create a Treasure token.
{5}, {T}, Sacrifice an artifact: Gain control of target artifact or creature until end of turn. Untap that permanent. It gains haste until end of turn. Activate only as a sorcery.

{1}, Sacrifice a creature: Each opponent loses 1 life.
Whenever a creature dies, you gain 2 life.

Distribute a vigilance, trample, first strike, and lifelink counter among up to four target creatures you control, then distribute four +1/+1 counters among those creatures.

Flying
Whenever Prismatic Scyphozoa attacks or blocks, target player mills three cards.
When Prismatic Scyphozoa dies, create four 1/1 blue Elemental creature tokens with flying.

Choose one —
• Prevent all combat damage that would be dealt this turn.
• Counter target noncreature spell.

Once each turn, when one or more artifacts you control deals damage to an opponent, you may exile the top card of your library. You may play that card this turn. The same is true for enchantments, planeswalkers, instant spells, and sorcery spells.

When Prod the Stitchwork enters, it deals 1 damage to target player. That player sacrifices a creature.
At the beginning of your end step, if an opponent was dealt damage by three or more sources this turn, exile the top card of your library. You may play it until the end of your next turn.

At the beginning of your upkeep, you may exile a card from your hand with a knowledge counter on it. If you do, draw a card. Then you may have Professor Adelia become a copy of any permanent card you own in exile with a knowledge counter on it, except it has this ability.

If Professor Haldean would leave the battlefield, exile him instead.
Whenever you cast a spell, you may untap Professor Haldean and another target permanent.
{T}: Professor Haldean deals 1 damage to each opponent.

Whenever another nontoken creature you control enters, if it has a different name than each other creature you control and card in your graveyard, you may create a token that's a copy of it.

Surveil 3. Then you gain 3 life and draw three cards. (To surveil 3, look at the top three cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
Cycling {2} ({2}, Discard this card: Draw a card.)

Whenever a nontoken creature dies, you may exile that card from its owner's graveyard. If you do, return each other card exiled with Prop Recycling to its owner's graveyard.
At the beginning of combat on your turn, create a token that's a copy of a card exiled with Prop Recycling.