msem-instigator

Lifelink
Spells your opponents cast cost an additional {1} to cast for each spell they've cast before it this turn.

First strike (This creature deals combat damage before creatures without first strike.)
When Zephyr Rider enters, you may have another target creature you control gain first strike until end of turn.

{1}, Sacrifice Zhedina Confiscator: Destroy target artifact or enchantment.

When Zhedina Envoys leaves the battlefield, create two 1/1 Scout creature tokens that are all colors.

When Zhedina Provisioner enters, creatures you control get +1/+1 until end of turn. You gain 2 life.

Each other Okus planeswalker you control enters with two additional loyalty counters on it.
[–2]: Draw two cards, then discard a card.

Draw a card.
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.)

Return target instant or sorcery card with mana value 3 or less and without reconstruct from your graveyard to your hand.
Reconstruct {6}{U} (You may cast this from your graveyard for its reconstruct cost reduced by the mana value of a permanent you sacrifice as you cast it this way. Then exile this.)

Gain control of target artifact, creature, or planeswalker if its mana value is 4 or less or if you cast A Sucker for You from a graveyard.
Reconstruct {9}{U}{U}{U} (You may cast this from your graveyard for its reconstruct cost reduced by the mana value of a permanent you sacrifice as you cast it this way. Then exile this.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Audition for blue. (Create a 1/1 Construct Actor creature token, a Wizard Role giving 2/2 and prowess, or a Warlock Role giving 2/1 and flying. Roles replace older ones.)
Whenever a creature you control deals combat damage to a player this turn, draw a card.

Each player mills four cards.
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.)
When A Vision Too Vast enters, you may cast target noncreature, nonland card with mana value 4 or less from a graveyard without paying its mana cost.

When AOSE Lab Tech enters, draw three cards, then discard two cards unless you discard an artifact card.

{1}{U}, Sacrifice two artifacts: Draw a card.
Whenever an artifact you control dies, put a stun counter on up to one target creature. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Counter target spell. If that spell is countered this way, put it on the bottom of its owner's library instead of putting it into its owner's graveyard. You may put up to three target cards from your graveyard on the bottom of your library in any order.

Whenever a creature enters, return each other creature controlled by the same player to its owner's hand.

When Abberant Frostbringer enters, tap up to one target creature. If you do, put two stun counters on that creature. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Glitch {1} (Remove one [restriction] for each time you pay the glitch cost.)
Create a token that's a copy of target [noncreature] permanent [you control].

Gain control of target noncreature, nonland permanent with mana value X.

Draw three cards. Discard two cards at the beginning of the next end step.

Creatures your opponents control get -1/-0.

Exile a nonland card from target opponent's graveyard. Copy it. You may cast the copy without paying its mana cost. (Copies of permanents enter as tokens.)

At the beginning of combat on your turn, up to one target artifact you control becomes a creature in addition to its other types and gains “This creature's power and toughness are each equal to the number of artifacts you control” and “{U}: Exile this creature, then return it to the battlefield under your control.”

When Adept Electromancer enters, scry 2, then reveal the top card of your library. If it's an instant or sorcery card, put it into your hand.

Prowess
When Adept of Signals enters, create a Vial token. (It's an artifact with “{1}, Sacrifice this and another permanent: Draw a card. Activate only during your turn.”)
Tokens you control have “{2}, {T}: Sacrifice this token: Draw a card.”