msem-instigator

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Audition for white. (Create a 1/1 Construct Actor creature token, a Scout Role giving 2/3 and vigilance, or a Cleric Role giving 2/2 and lifelink. Roles replace older ones.)
III — Distribute two +1/+1 counters among creatures you control.
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(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Destroy target creature you don't control with the greatest power.
II — Until your next turn, prevent all damage that would be dealt to you and planeswalkers you control.
III — Exile target card from a graveyard. You gain 2 life.

Each player who controls a creature with power 3 or less draws a card. Then destroy all creatures.

Vigilance
Conflict Capturer gets +2/+0 as long as a permanent you controlled left the battlefield this turn.

Create a 1/1 colorless Construct Actor creature token for each creature you control.
Compose (Then if you cast this from your hand, exile it and create a Saga token with “r3—You may cast a copy of this card from exile without paying its mana cost.”)

Whenever another creature or enchantment you control enters, you gain 1 life.
{3}{W}{W}, Pay 5 life: Castigated Sister becomes a 5/5 Angel Horror with flying. (This effect doesn't end at end of turn.)

Flying, lifelink
If an ability of an enchantment you control triggers, you may have that ability trigger an additional time.

Wanderer's Sky enters tapped.
As Wanderer's Sky enters, choose a color other than blue.
{T}: Add {U} or one mana of the chosen color.

As long as your deck contains only blue and colorless cards, your minimum deck size is reduced by eight.

As long as your deck contains only green and colorless cards, your minimum deck size is reduced by eight.

As long as your deck contains only white and colorless cards, your minimum deck size is reduced by eight.

Overgrown Ruins enters tapped.
As Overgrown Ruins enters, choose a color other than green.
{T}: Add {G} or one mana of the chosen color.

Noxious Garden enters tapped.
As Noxious Garden enters, choose a color other than black.
{T}: Add {B} or one mana of the chosen color.

As long as your deck contains only black and colorless cards, your minimum deck size is reduced by eight.

{T}, Pay 2 life: Add {B}.
{T}: Add one mana of any color. Spend this mana only to cast spells from your graveyard or activate abilities of cards in your graveyard.

Field of Obelisks enters tapped.
As Field of Obelisks enters, choose a color other than white.
{T}: Add {W} or one mana of the chosen color.

Ancient Cairns enters tapped.
As Ancient Cairns enters, choose a color other than red.
{T}: Add {R} or one mana of the chosen color.

Whenever you sacrifice a Clue, you lose life equal to the number of Clues you control, then investigate twice. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

Equipped creature gets +0/+2.
When equipped creature dies, investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)
Equip {1}

{3}: Put a +1/+1 counter on Tinkerer's Assistant.

At the beginning of your upkeep, you may put a card from your graveyard on the bottom of your library. If you do, you gain 2 life.
{2}, Sacrifice Rune of Rejuvenation: Draw a card.

Whenever another nonland permanent you control enters, return that permanent to its owner's hand at the beginning of the next end step.

Equipped creature gets +2/+3.
Equip {4}
{2}: Attach Lodestone Sword to target artifact creature you control.

At the beginning of each player's end step, that player sacrifices a permanent.

Flash
When Outland Alchemist enters, return another permanent you control to its owner's hand.