msem-instigator

When Village Courier enters, look at the top four cards of your library. You may reveal an artifact, enchantment, or land card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Whenever Vindictive Pyromancer perseveres, it deals 1 damage to any other target. (A creature perseveres when it survives damage.)

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

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

Deathtouch
When Vizier of Lies enters, you may return target instant or sorcery card from your graveyard to your hand.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Noncreature spells you cast cost {1} less to cast. This effect can't reduce the amount of mana a spell costs to cast to less than one mana.

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

At the beginning of each end step, if you've cast a noncreature spell this turn, Void Sculptor deals 1 damage to each opponent.

Flying
{R}: Volatile Elemental gets +1/+0 until end of turn.

Haste
When Volatile Stonework enters, choose target creature or planeswalker an opponent controls.
When Volatile Stonework dies, it deals 4 damage to the chosen creature or planeswalker.

Flash (You may cast this spell any time you could cast an instant.)
When Volatimancer enters, you may have target creature have base power and toughness 1/1 until end of turn.

Ferocious — When Volcanic Whelp enters, if you control a creature with power 4 or greater, Volcanic Whelp gets +3/+0 and gains haste until end of turn.

Vollta Patrician gets +1/+1 as long as you control a Forest.
{1}{G}: Regenerate Vollta Patrician. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

Double strike
Battalion — Whenever Voracious Howler and at least two other creatures attack, Voracious Howler gets +2/+0 until end of turn.

Whenever Voracious Spawn enters or attacks, exile up to one target card from a graveyard. If you exile a permanent card, put a +1/+1 counter on Voracious Spawn. If you exile a nonpermanent card, you gain 1 life.

Prowess
{1}{R}: Until end of turn, if an instant, sorcery, or Dragon source you control would deal damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead. Activate only once each turn.

Vulpine Bluffs enters tapped.
{T}: Add {R} or {W}.
{1}{R}{W}: Until end of turn, Vulpine Bluffs becomes a Fox creature with double strike in addition to its other types.
Scavenge {R}{W}

Tithe (When this creature enters, you may tap three other artifacts and/or creatures you control.)
When Wailing Chorus enters, each opponent discards a card. If its tithe was paid, each opponent discards two cards instead.

Deathtouch
When Waking Pollution enters, you may move all counters from target permanent onto Waking Pollution.

Walker of the Final Path gets +3/+3 and has trample as long as you control a Horror.
When Walker of the Final Path enters, search your library for a Revelation card, put it into your graveyard, then shuffle.

{2}, Sacrifice Walking Platform: Create a 1/1 colorless Thopter artifact creature token with flying.

When a creature you control scavenges Wanderer of Many, create a token that's a copy of that creature. Put a +1/+1 counter on the copy.
Scavenge {3}{U} ({3}{U}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)

Whenever Wandering Conqueror attacks, it explores. (Reveal the top card of your library. Put it into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then you may put that card in your graveyard.)
As Wandering Conqueror explores a land, you may put that card into your graveyard. Whenever you do, Wandering Conqueror deals 2 damage to target player or planeswalker.

Angel spells you cast cost {1} less to cast.

If Wandering Domovoi would be dealt noncombat damage, prevent that damage and put three +1/+1 counters on Wandering Domovoi instead.