msem-instigator

Whenever Rambunctious Upstart attacks, up to one target creature gets -3/-1 until end of turn and up to one target creature gets +3/+1 until end of turn.

This spell costs {1} less to cast for each card put into your graveyard from anywhere this turn.
Target creature gets -4/-4 until end of turn.

Copy target spell twice. You may choose new targets for the copies. (A copy of a permanent spell enters as a token.)

Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)
Whenever Sullivan's Heralds or another creature you control becomes renowned, add mana equal to the number of +1/+1 counters on it in any combination of {R} and/or {G}. Until end of turn, you don't lose this mana as steps and phases end.

Reach
Scarecrow spells you cast cost {1} less to cast.

Flying
Concord — When Archangel of Accord enters, if there are four or more card types among permanents you control, destroy all other creatures.

Enchant creature
Enchanted creature has deathtouch and “When this creature dies, create a 2/2 black Demon creature token.”
{1}{B}, Exile Reaping Mask from your graveyard: Create a 2/2 black Demon creature token.

If you would draw a card, you may instead choose creature or land and exile cards from the top of your library until you exile a card of the chosen kind. Put that card into your hand and put all other cards exiled this way on the bottom of your library in a random order.

Choose one —
• Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
• Tap target creature and put three stun counters on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

At the beginning of your upkeep, put a crop counter on Homestead.
{G/W}, Remove a crop counter from Homestead: Put a +1/+1 counter on target creature.
{G/W}, Remove three crop counters from Homestead: Put a +1/+1 counter on each creature you control.

When Ralezza's Disciple enters, if you control an enchantment, you gain 3 life.

At the beginning of your upkeep, each player mills two cards, then reveals the top card of their library and puts it on the bottom of their library.

This spell costs {2} less to cast if you sacrificed a Clue this turn.
Target player discards two cards.

Whenever Keen Blademaster attacks, you may tap target creature.

Search your library for a creature card with mana value 3 or less, put it onto the battlefield, then shuffle. It gains haste until end of turn. Return it to your hand at the beginning of the end step.

Distant Path enters tapped unless you control one or fewer other lands.
{T}: Add {W} or {U}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Flying
{1}{R}: Sangrite Dragon gets +2/+0 until end of turn.
Sacrifice another creature: Add {R}{R}.

When Aethermancer's Companion enters, aetherize up to two other non-Cat permanents you control. (Create tokens that are copies of each of them, then exile them.)
Recite {5}{W}{U} (You may cast this spell from your graveyard for its recite cost. If you do, exile it when it enters or if it would leave the battlefield.)

Lifelink
Revive {W} ({W}, Exile this card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

Permanents you control are black. The same is true for spells you control and nonland cards you own that aren't on the battlefield.
At the beginning of your upkeep, you may pay {B}. If you do, you draw a card and you lose 1 life.

(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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Whenever Failed Martyr attacks, each other attacking creature gets +1/+0 until end of turn.
Attain {4}{W} ({4}{W}: Transform this. Spend at least three colors of mana to activate this, and only as a sorcery.)

Menace
Whenever you cast a spell from your graveyard, The Selhoff Twins deals damage equal to that spell's mana value to any target. Then copy that spell. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.)

Mill four cards, then return any number of creature cards with total mana value 4 or less from your graveyard to the battlefield.