msem-instigator

When Victims of Graygulch enters the battlefield, target player loses life equal to the number of Spirits you control. You gain life equal to the life lost this way.

Vigilance
{6}: You may tap or untap target creature.

Whenever you cast a spell during an opponent's turn, investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Whenever a creature enters the battlefield under your control, each opponent loses 1 life.
I, II — Create a 1/1 black Actor creature token with lifelink.
III — Each opponent loses life equal to the number of tokens you control. You gain life equal to the life lost this way.

Whenever you sacrifice a Clue, Vivian's Vanguard gets +2/+0 and gains flying until end of turn.

[+1]: Exile up to one other target permanent until the beginning of its owner's next end step.
[–1]: Return another target planeswalker to its owner's hand.
[–6]: You get an emblem with “Whenever a permanent leaves the battlefield, each opponent discards a card.”

Whenever a nontoken permanent you control leaves the battlefield, create a token that's a copy of it. Exile the token at the beginning of the next end step.

When Vivid Hallucination blocks or becomes blocked, return it to its owner's hand.

Sacrifice Voice of Ambition: Target creature gets +2/+1 until end of turn.

Target creature gets +X/+X and gains vigilance until your next turn, where X is the number of creatures you control.

Put target attacking or blocking creature on top of its owner's library.
Fuse (You may cast one or both halves of this card from your hand.)

Enchant creature
Enchanted creature can't block or be blocked.
{U}: Enchanted creature gets +1/+0 or -1/-0 until end of turn.

Vigilance
Other Scouts you control get +1/+1 and have vigilance.
{X}, Tap four untapped Scouts you control: Create an X/X green Beast creature token.

When Walking Armory enters the battlefield, return all Equipment cards from your graveyard to the battlefield, then attach them to Walking Armory.

Play with the top card of your library revealed.
Spells you cast that share a creature type with the top card of your library cost {1} less to cast.

Post a bounty on target creature. (Put a bounty counter on that creature. It has “When it dies, each opponent draws a card” as long as it has a bounty counter on it.)
Draw a card.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — War's Sorrow deals 1 damage to any target.
III — Each player sacrifices another permanent. Put War's Sorrow on top of its owner's library unless a player has it deal 3 damage to them.
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Lifelink
{3}{W}: Exile Wardens of the Ulek. Return it to the battlefield under its owner's control at the beginning of the next end step.

Equipped creature gets +2/+2 and has haste and trample.
Whenever another creature you control dies, sacrifice equipped creature.
Equip {1}

Prevent all damage target attacking creature would deal this turn. If there is a card named Warning Shot in your graveyard, exile that creature.

Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)

Each creature with power greater than its toughness doesn't untap during its controller's untap step.

Whenever equipped creature attacks or blocks, it gets +3/+3 and gains hexproof until end of turn.
Equip {1}

Whenever Wasting Soul attacks or blocks, sacrifice a creature, then put two +1/+1 counters on Wasting Soul.

Prowess
Whenever you cast a noncreature spell, target creature can't block this turn.