msem-instigator

Vigilance
Renown 2 (When this creature deals combat damage to a player, if it isn't renowned, put two +1/+1 counters on it and it becomes renowned.)
{T}: Prevent the next X damage that would be dealt to target creature this turn, where X is Steelclad Investigator's power.

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 Traveling Marshal is renowned, it has first strike.

Vigilance
Whenever you cast a noncreature spell, you gain 2 life.

When target creature you control dies this turn, return that card to the battlefield tapped. Put two +1/+1 counters on it. It becomes renowned.

Counter target instant or sorcery spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Counter target creature or Revelation spell unless its controller pays {3}.

When Gleeful Deviser enters, create a 1/1 colorless Construct artifact creature token.

Prowess
Grizzled Stoker can't be blocked as long as you control an artifact.

Flash
When Hostile Takeover enters, you may counter target noncreature spell.
At the beginning of your upkeep, you may put a progress counter on a Project you control.

Enchant creature you control
Enchanted creature gets +1/+1.
{1}{U}: Return Lightning Draw and enchanted creature to their owners' hands.

Look at the top three cards of target player's library. Put one back and exile the rest.
Coalesce {5}{U} (You may cast this from your graveyard for {5}{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 Lurk at Vision's Edge attacks, defending player exiles the top five cards of their library.

Whenever you cast a noncreature spell, you may put a progress counter on Reckless Research.
[progress 2+] At the beginning of your end step, mill two cards.
[progress 7+] At the beginning of your upkeep, choose target instant or sorcery card in your graveyard. You may cast it from your graveyard this turn.
At the beginning of your upkeep, choose target instant or sorcery card in your graveyard. You may cast it from your graveyard this turn.

Flying
Instant and sorcery spells you cast cost {1} less to cast.
{2}{U}: Target player mills two cards.

Whenever an artifact is put into your graveyard from the battlefield, you may draw a card. If you do, discard a card.
{T}, Exile three noncreature cards from your graveyard: Create a 1/1 colorless Construct artifact creature token.

Whenever an artifact you control enters, you may put a progress counter on Spectacle of Innovation.
[progress 1+] Artifact creatures you control get +1/+1.
[progress 3+] Artifact creatures you control have flying and hexproof.
Artifact creatures you control have flying and hexproof.

Gain control of target noncreature permanent.
Coalesce {8}{U}{U} (You may cast this from your graveyard for {8}{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.)

Tap up to one target nonbasic permanent. It doesn't untap during its controller's next untap step.
Coalesce {5}{U} (You may cast this from your graveyard for {5}{U}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)

Enchant creature
Enchanted creature has hexproof.
{U}: Enchanted creature can't be blocked by target creature this turn.

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.

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.

Whenever you cast a noncreature spell, each opponent loses 1 life and you gain 1 life.

As an additional cost to cast this spell, sacrifice an artifact or enchantment.
You draw three cards and you lose 3 life.