msem-instigator

Reveal the top four cards of your library. You may put one into your hand and the rest into your graveyard.
Compose (Then if you cast this from your hand, exile it and create a Saga token with “III—You may cast a copy of this card from exile without paying its mana cost.”)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Create two 1/1 colorless Construct Actor creature tokens.
II, III — Creatures you control gain flying until end of turn. Whenever one or more of them deals combat damage to a player this turn, draw a card.
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When Swiftwheel Slayers enters the battlefield, audition for red. (Create a 1/1 Construct Actor creature token, a Warrior Role giving 3/2 and trample, or a Wizard Role giving 2/2 and prowess. Roles replace older ones.)
Token creatures you control have haste.

(As this Discovery enters and after your draw step, add a progress counter. Stop after you've discovered.)
Archive 6 (As this enters the battlefield, shuffle the top six cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
Draw a card from each of your libraries.
discover — When you draw the last card from the archived library, create a 4/4 blue Sphinx Wizard creature token with flying.

Haste
Whenever Tailor of Terror attacks, you may exile a creature card from your graveyard. If you do, put a +1/+1 counter on Tailor of Terror.

Target creature you control gets +1/+1 and gains lifelink until end of turn. It fights target creature you don't control.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II, III — Create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)
For each color, return up to one target creature card of that color from your graveyard to your hand.
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(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Audition for black. (Create a 1/1 Construct Actor creature token, a Cleric Role giving 2/2 and lifelink, or a Warlock Role giving 2/1 and flying. Roles replace older ones.)
III — Until end of turn, if a creature you don't control would die, instead exile it and that creature's controller loses 2 life.
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Once each turn, if a triggered ability of another legendary permanent you control would trigger, you may have it trigger an additional time.

Haste, prowess
Whenever you cast a noncreature spell, journey. (To journey, exile the top card of your library face up. Whenever a creature you control deals combat damage to an opponent, put a journeyed card you own into your hand.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Destroy target creature you don't control with the greatest power.
I — Until your next turn, prevent all damage that would be dealt to you and planeswalkers you control.
II — Exile target card from a graveyard. You gain 2 life.

First strike
At the beginning of your end step, each opponent that lost life this turn loses 1 life and discards a card. You gain life equal to the life lost this way, then draw a card for each land card discarded this way.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Create a 1/1 colorless Construct Actor creature token.
II — Create a Food token and a Weapon token. (A Weapon token is an Equipment with equip {2} and “Equipped creature gets +1/+1.)
III — You may exile The Disappearance of Faye if you control five or more tokens. If you do, return a card from your graveyard to your hand. If you didn't exile it, draw a card.

When The Grand Plot enters the battlefield, search your library for up to three Saga cards with different names with mana value X or less, exile them, then shuffle.
The Grand Plot has all chapter abilities of cards exiled with it.
At the beginning of your upkeep, you may put a lore counter on The Grand Plot. When you do, you may sacrifice it. If you do, draw a card.

Target opponent may have The Highest Stakes deal 4 damage to them. If that player doesn't, you draw two cards.
Compose (Then if you cast this from your hand, exile it and create a Saga token with “III—You may cast a copy of this card from exile without paying its mana cost.”)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Flash
Draw three cards.
I, II, III — You may cast a spell with mana value less than or equal to the number of lore counters on The Infinite Calls to Marva from your hand without paying its mana cost.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Audition for green. (Create a 1/1 Construct Actor creature token, a Scout Role giving 2/3 and vigilance, or a Warrior Role giving 3/2 and trample. Roles replace older ones.)
III — Creatures you control get +1/+0 and gain trample until end of turn.
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Counter target spell. You may put a lore counter on a Saga you control.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Return target creature card from your graveyard to your hand.
II — Return target instant or sorcery card from your graveyard to your hand.
III — At the beginning of the next end step, create an X/X black Horror creature token, where X is the number of spells you cast this turn.

Creatures you control get +2/+0 until end of turn. Creatures you control with counters on them gain trample until end of turn.

Each planeswalker you control is an Okus in addition to its other types.
[–1]: Search your library for a planeswalker card or an Aura card with enchant planeswalker, reveal it, and put it into your hand, then shuffle.
The Paragon of Haberdashery can be your commander. If it is, it's all colors.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Put a prowess counter on target creature you control. That creature deals 2 damage to each opponent.
Scry 3.
II, III — Until end of turn, if you casting an instant or sorcery spell causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Create two 1/1 colorless Construct Actor creature tokens.
II — Creatures you control gain first strike until end of turn.
III — Creatures you control get +1/+0 until end of turn.

Flying
Whenever one or more other creatures die for the first time each turn, journey. (To journey, exile the top card of your library face up. Whenever a creature you control deals combat damage to an opponent, put a journeyed card you own into your hand.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Distribute a trample counter, a vigilance counter and a +1/+1 counter among one, two, or three creatures you control.
III — Choose another permanent you control. For each counter on it, you may move that counter onto a permanent you control.​