msem-instigator

Menace
Whenever a player gains life, that player sacrifices a permanent.

Target creature gains deathtouch until end of turn.
Draw a card.

When Viridian Townships enters the battlefield, create two Idol tokens. (They're artifacts with “{1}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.”)
{2}, Sacrifice an Idol: Draw a card.
{2}, Sacrifice an Idol: You gain 3 life.

{2}, {T}, Sacrifice Virtual Terrain: Search your library for a land card, put it onto the battlefield tapped, then shuffle.

Target creature you control deals damage equal to its power to target creature you don't control.

Enchant creature
Enchanted creature blocks each combat if able.
Whenever enchanted creature attacks, it loses flying until end of turn.

{T}: Add {G}.
{T}: Sacrifice Visionary Developer: Create a token that's a copy of target token you control. Activate only as a sorcery.

When Visiting Dignitary enters the battlefield, gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn.

Vigilance
Whenever Vital Companion attacks, you may put a quest counter on an enchantment you control.

Vitalhydra enters the battlefield with twice X +1/+1 counters on it.
Each other creature you control enters the battlefield with a number of additional +1/+1 counters on it equal to the number of +1/+1 counters on Vitalhydra.

When Vitality Reclaimer enters the battlefield, you may return target permanent card from your graveyard to your hand.

You gain twice X life.
Kindle X—{X}{G}{G} ({X}{G}{G}, Exile this card from your graveyard: Create X 1/1 colorless Elemental creature tokens. Kindle only as a sorcery.)

Eureka! (At the beginning of each end step, you get a research counter if you cast a spell this turn. Then if you have eight or more research counters, remove them and create a Masterpiece token of your choice.)
Equipped creature gets +3/+2.
Equip {R}

Eureka! (At the beginning of each end step, you get a research counter if you cast a spell this turn. Then if you have eight or more research counters, remove them and create a Masterpiece token of your choice.)
Whenever an artifact enters the battlefield under your control, up to two target creatures get +1/+0 and haste until end of turn.

At the beginning of your end step, create an X/X colorless Construct artifact creature token, where X is the number of artifacts that were put into your graveyard from the battlefield this turn.

Vivid Crag enters the battlefield tapped with two charge counters on it.
{T}: Add {R}.
{T}, Remove a charge counter from Vivid Crag: Add one mana of any color.

Vivid Grove enters the battlefield tapped with two charge counters on it.
{T}: Add {G}.
{T}, Remove a charge counter from Vivid Grove: Add one mana of any color.

Target creature you control gains trample until end of turn. Whenever that creature deals damage to a player this turn, create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

Create a token that's a copy of target creature or land you control, except it has haste and “At the beginning of the end step, exile this permanent.” If a land you control was targeted this way, create two of those tokens instead.

[+1]: Mill four cards, then return up to one creature card milled this way to your hand. You may activate a different loyalty ability Vivien has this turn.
[+1]: Create a 2/2 green Cat Spirit creature token with “When this creature dies, you gain 2 life.”
[–3]: Choose target creature you don't control. If it has flying, destroy it. Otherwise, up to one target creature you control deals damage equal to its power to that creature.
[–9]: Create four 4/4 green Hydra creature tokens. Creatures you control gain trample and haste until end of turn.

This spell costs {2} more to cast for each target beyond the first.
Choose one or more —
• Counter target activated or triggered ability from a nonland source.
• Vivien's Endeavor deals 6 damage to target attacking creature with flying.
• Target player searches their library for a creature card with colossal, reach, trample, or vigilance, reveals it, puts it into their hand, then shuffles.

When Voice of Revolution enters the battlefield, Rebel creatures you control get +1/+0 and gain haste until end of turn.

{T}, Discard two cards: Draw two cards, then Voice of Warryn deals 2 damage to each opponent.

At the beginning of your upkeep, you may pay {1}{G}. If you do, create a 1/1 green Dryad creature token with “Sacrifice this creature: Add one mana of any color.”

Crystallize. (Put a +1/+1 counter on a creature you control or create a Treasure.)
Voice of the Universe deals 2 damage to each creature.