msem-instigator

Choose one —
• Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
• Create a tapped token that's a copy of target token you control.

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

Hidden Prowess deals 2 damage to target creature. When that creature dies this turn, create a 1/1 red Elemental creature token.

Living Vista enters tapped.
{T}: Add {G} or {W}.
{1}, {T}: Add one mana of any color.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I, II, III — Create a tapped colorless Powercell artifact token with “{T}: Add {C}.”
IV — Sacrifice three artifacts.
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As an additional cost to cast this spell, sacrifice a creature.
Kindle the Cursed deals 3 damage to target creature and 3 damage to that creature's controller.

Flying
Whenever another creature you control attacks, you may pay {1}. If you do, put a +1/+1 counter on it.

Art of war — At the beginning of your end step, if Kowareta Scrounger dealt damage to an opponent this turn, you may search your library for an artifact card, reveal it, put it into your hand, then shuffle.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Put a +1/+1 counter on target creature you control. It gains vigilance until end of turn.
III — Target creature you control gets +2/+2 and gains flying, vigilance, and lifelink until end of turn.

Wild Realms enters tapped unless you control two or more other lands.
{T}: Add {G}.
{T}, Pay 1 life: Add {R} or {W}.

Whenever Fickle Feeder blocks, fateseal 1. (To fateseal 1, look at the top card of an opponent's library, then you may put it on the bottom of that player's library.)

Flying
When Hoverbike Courier enters, you may reappropriate. If you do, draw a card. (To reappropriate, exile exactly two cards from your hand and/or graveyard.)

[+1]: Untap up to two target permanents. They gain hexproof until your next turn.
[–2]: Tap up to three target permanents. They don't untap during their controller's next untap step.
[–6]: Exile up to five target permanents. Return those cards to the battlefield under your control.

Search your library for up to two land cards with basic land types, put them onto the battlefield, then shuffle. Sacrifice two lands at the beginning of the next end step.

{T}, Sacrifice Worldshaper Adept: Choose two basic land types. Create a tapped colorless land token of the chosen types.

Target creature you control gets +X/+X until end of turn. It fights target creature you don't control.

Livia's name is Senaturian Legion in addition to its other names as long as it's on the battlefield.
At the beginning of your upkeep, conjure a card named Senaturian Legion into your hand, then discard a card. (It's a 1/1 Human Soldier for {W}{W} that gets +1/+1 for each other creature on the battlefield named Senaturian Legion.)
Other Soldiers you control have haste.

As an additional cost to cast Reunite with Nature, sacrifice X creatures.
Create X plus one 3/1 red and green Elemental Horror creature tokens with haste and trample.

Dunesea Expanse enters tapped unless you control another Desert.
{T}: Add {W} or {U}.

Menace
When Fortune Hoarder dies, each player discards a card at random.

Double strike
{1}{R}{W}: Target creature gains double strike until end of turn. Activate only if Bravery is in your graveyard.

Flying, prowess
{U}{R}, Exile an instant or sorcery card from your graveyard: Whimsical Elemental gets +1/+1 until end of turn.

Changeling (This card is every creature type.)
As Kalyn, Wildkin Envoy enters, choose up to three non-Human creature types.
Other creatures you control with one or more of the chosen types get +1/+1.
{2}, {T}: Create a 1/1 colorless Shapeshifter creature token with changeling. Activate only outside of combat.

Whenever an artifact you control enters, Master of Munitions deals 1 damage to each opponent.