msem-instigator

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

This spell costs {2} less to cast if your life total is less than or equal to half your starting life total.
Destroy all creatures.

Destroy target nonland permanent.
Monument {W}{B} (You may cast this transformed from your graveyard for its monument cost. Exile it if it would leave the battlefield or not resolve.)

(Add a quest counter as this enters. Sacrifice after 3.)
At the beginning of your end step, if you have more life than an opponent, add a quest counter.
Mill two cards. You may put one of those cards into your hand. If you do, you lose 3 life. Otherwise, you gain 3 life.
Return target creature or planeswalker card from your graveyard to the battlefield.

Whenever two or more creatures you control deal combat damage to a player, you gain 3 life and create a Treasure token. (It's an artifact with “{T}, Sacrifice this permanent: Add one mana of any color.”)
Whenever you sacrifice your second permanent each turn, you draw a card and you lose 1 life.

Enchant player
Death knell — Enchanted player loses 1 life and you gain 1 life. (As a creature you control dies, trigger one death knell of that creature or another permanent you control.)
Whenever a creature you control dies, enchanted player chooses a death knell ability of a permanent you control. Trigger that ability.

Judge each creature you control. (Honor it by putting a +1/+1 counter on it or condemn it by sacrificing it to draw a card.)

When Here Forever enters, exile target creature or planeswalker until Here Forever leaves the battlefield.
At the beginning of your upkeep, the owner of the exiled card loses 1 life.

Choose one—
• Exile target creature with power 4 or
greater.
• Exile up to four target noncreature cards from graveyards.

Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.
{2}{W}{B}: Ishim's Meddling becomes a 4/4 Angel creature with flying and vigilance until end of turn.

Archive 3 (As this enters, shuffle the top three cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
Whenever you draw a card from the archived library, you exile up to one target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

[+2]: Exile another target permanent, then return it to the battlefield under its owner's control.
[–2]: Gain control of target creature unless its controller pays its mana cost.
[–5]: You get an emblem with “If a nonland permanent would enter and it wasn't cast, it you control enters instead.”

Return target creature card with mana value 3 or less from your graveyard to the battlefield.

Enchant player
When Kazimir's Inquisition enters, enchanted player chooses four card names.
Whenever enchanted player casts a spell, if it doesn't have one of the chosen names, enchanted player loses 4 life.

When Lay Bare Ambitions enters, if it was cast, target opponent reveals their hand. Choose a nonland card from it. That player discards that card.
If a spell or ability an opponent controls would cause them to draw one or more cards, instead sacrifice Lay Bare Ambitions and they skip those draws.

At the beginning of your end step, you may sacrifice a creature. When you do, return another target creature card with mana value 2 or less from your graveyard to the battlefield with a finality counter on it. (If a creature with a finality counter on it would die, exile it instead.)

(Choose only one work as a sorcery to add its ability.)
When Memorial Plaza enters, create two 1/1 colorless Spirit creature tokens with flying.
{2}{W}: The Warrior
At the beginning of combat on your turn, put a +1/+1 counter on target creature you control.
{1}{B}: Rhapsody in Black
At the beginning of your end step, you may sacrifice a creature. If you do, draw a card.

(Activate each submodule once as a sorcery. When this enters, activate one submodule for free.)
{2}{W}: Virtue
You gain 6 life.
{2}{B}: Corruption
Each opponent loses 3 life.
{1}{W}{B}: Absolution
Morality Module gains “At the beginning of your end step, if you have more life than an opponent, you may pay 2 life. If you do, draw a card.”

[+1]: Mpumo, Who Stands Alone deals 1 damage to any target and you gain 1 life.
[–X]: Exile target creature with mana value X.
[–6]: Choose up to four permanents an opponent controls. That player chooses one, then sacrifices the rest.

[+1]: Reveal the top card of your library and put that card into your hand. You lose life equal to its mana value.
[0]: You gain 1 life for each card in your hand.
[–7]: Search your library for up to X cards, where X is the number of cards in your hand, and put them into your hand. Then shuffle.

[+1]: Target opponent reveals their hand. Exile a nonland card from it. For as long as it remains exiled, its controller may cast that card, and it costs {2} more to cast.
[–2]: Exile target creature or planeswalker with mana value 3 or less.
[–8]: Search target opponent's library for up to twenty cards and exile them. Then that player shuffles.

Return target permanent card from your graveyard to the battlefield. If that permanent is storied, Netherform becomes an Aura enchantment with enchant permanent. Attach it to that permanent. (Enchantments and legendary permanents are storied.)
Enchanted permanent has indestructible.

Put target permanent card with mana value 3 or less from a graveyard onto the battlefield under your control.
Leitmotif (If you cast this spell from your hand, exile it as it resolves. When you next cast a spell that shares a color with this card, you may cast this from exile without paying its mana cost.)

You may activate an additional loyalty ability of Nox during your turn as long as Nox or another enchantment you control has entered this turn.
[+1]: You gain life equal to the amount of life lost by target player this turn.
[0]: Target opponent loses 2 life. You gain 2 life.
[–2]: Exile target nonland permanent. You lose life equal to its mana value.

Protection from tokens
[+1]: Each player may draw a card. For each opponent that does, you gain 1 life and create a 1/1 colorless Construct Actor creature token
[–2]: Each player sacrifices a creature. Create a token that's a copy of a creature sacrificed this way.
[–7]: Until end of turn, each creature you control becomes a 6/6 black Horror creature with trample, menace, and lifelink.