msem-instigator

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 a creature you control becomes renowned, scry 1.

Reach, trample
Improve {1}{B/G} ({1}{B/G}: Put a +1/+1 counter on this creature. This costs {1} more to activate for each +1/+1 counter on it. Improve only as a sorcery.)
Whenever one or more +1/+1 counters are put on Gorganith, Ruin Maw, you may search your library and/or graveyard for a creature card with mana value equal to or less than the number of +1/+1 counters on Gorganith and put it onto the battlefield. If you search your library this way, shuffle.

Flying, trample
When this creature transforms into Griselbrand, the Usurper, draw seven cards.

Tomb of the Roseblade enters tapped.
{T}: Add {C}.
{X}, {T}, Sacrifice Tomb of the Roseblade: Search your library for an Equipment card with mana value X or less, put it onto the battlefield, then shuffle. Activate only as a sorcery.

Persistent glitch {1}. Spend only mana of a color that hasn't been spent this way to activate this ability. ({1}: Permanently remove one [restriction] from this permanent.)
[+1]: You [and each opponent] may scry 2. Draw a card[, then discard a card.]
[–3]: Exile target nonland permanent [with mana value 4 or less]. [Its controller creates a Treasure token.]
[–6]: Create five 2/2 blue Elemental creature tokens with flying [and -1/-1 counters on them].

Target creature gains indestructible until end of turn.
Fuse (You may cast one or both halves of this card from your hand.)

{1}{U}: Aeon's Hand Cutthroat can't be blocked this turn.

Enchant creature with flying you control
When Chained to the Roc enters, exile target nonland permanent an opponent controls until Chained to the Roc leaves the battlefield.

Haste
Ride {R} ({R}: Transform this and attach it to target creature you control without a Steed. Ride only as a sorcery.)

Dawn Siege deals 4 damage to target creature and 2 damage to each other creature.

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

Vanguard — Whenever a creature you control attacks alone, it gets +1/+3 until end of turn.

Search your library for a basic land card, put it onto the battlefield, then shuffle.
Crystallize. (Put a +1/+1 counter on a creature you control or create a Treasure.)

Whenever Veiled Charmer attacks, target creature blocks it this turn if able.

Enchant creature you control
Vanishing 3 (This permanent enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
Enchanted creature gets +3/+3.
When Vampiric Appetite leaves the battlefield, sacrifice enchanted creature.

When Whisper Collector dies, draw a card.

Search target opponent's library for six cards and exile them, then that player shuffles. Skip your next turn.

Alpha (You may have this creature enter with a +1/+1 counter on it. If you do, it becomes alpha and can only attack alone.)
Lifelink

This spell costs {1} less to cast for each Scarecrow you control.
Other creatures you control get +0/+2 and have vigilance.

When Rousing Battlehound enters, other creatures you control get +1/+1 until end of turn. Other Hounds you control gain first strike until end of turn.

Lifelink
Deploy 3 (As this enters, you may tap any number of other creatures you control with total power 3 or more.)
When Fellow Traveler enters deployed, you and target opponent each draw two cards.

When Mettalia's Forward enters, you may salvage a card. (Exile one from your graveyard until this creature leaves the battlefield. Whenever this creature deals combat damage to a player, put a card it salvaged into your hand.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
You can't lose the game and your opponents can't win the game.
I — Your life total becomes 1.
II — Double your life total.
III — Create an X/X white Avatar creature token with indestructible, where X is your life total.

Whenever this creature or another Citizen or Peasant you control enters, you may exile target card from a graveyard. If you exile a creature card this way, you gain 1 life.

The first artifact spell you cast each turn costs {2} less to cast.
The first ability of an artifact you activate each turn costs {T} less.