msem-instigator

{T}: Add {C}.
{T}, Reappropriate: Add {W} or {U}. (Exile exactly two cards from your hand and/or graveyard.)

When Risti Inquisitor enters the battlefield, choose one —
• Destroy target enchantment.
• Put a +1/+1 counter on Risti Inquisitor.

Spells you cast that target Risti Operative cost {1} less to cast.
Abilities you activate that target Risti Operative cost {1} less to activate.

Artifact and enchantment spells you cast cost {1} less to cast.
Whenever Risti Salvager attacks, rediscover an artifact or enchantment card. (Look at the top card of your library. You may reveal it and put it into your hand if it's an artifact or enchantment card. Otherwise, put it back or into your graveyard.)

Vigilance
{3}{G}, {T}: Target creature you control fights target creature you don't control.

Choose one —
• Target player sacrifices a creature.
• Target player reveals their hand. Choose a creature card from it. They discard that card.

Reach
When Risti Watchkeeper enters the battlefield, rediscover a creature card. (Look at the top card of your library. You may reveal it and put it into your hand if it's a creature card. Otherwise, put it back or into your graveyard.)

Whenever you cast a noncreature spell, Runeclad Seeker gets +1/+1 until end of turn. If that spell was an Aura or Equipment spell, put a +1/+1 counter on Runeclad Seeker instead.

Saljan, Lord of the Disfigured and other Mutants you control get +1/+1 and have indestructible.
Whenever Saljan attacks or blocks, create a 1/2 black Mutant creature token.

If a source would deal combat damage to you or a creature you control, prevent 1 of that damage.

Menace
Savage Stalker attacks each combat if able.

Untap all creatures and lands you control during each other player's untap step.
Ascend {4}{R}{R}{R} ({4}{R}{R}{R}: Exile this creature, then return it to the battlefield transformed. Ascend only as a sorcery.)

Scavenger Holdout enters the battlefield tapped.
When Scavenger Holdout enters the battlefield, you may pay {3}. If you do, create two 1/1 green Scout creature tokens.
{T}: Add {C}.

As an additional cost to cast Scavenger Hunt, you may reappropriate. (To reappropriate, exile exactly two cards from your hand and/or graveyard.)
Scavenger Hunt deals 3 damage to target creature or planeswalker. When that permanent dies this turn, if Scavenger Hunt's additional cost was paid, draw a card.

Crew 1 (Tap any number of creatures you control with total power 1 or greater: This Vehicle becomes an artifact creature until end of turn.)
Whenever Scavengermobile deals combat damage to a player, choose land or nonland, then rediscover a card of that kind. (Look at the top card of your library. You may reveal it and put it into your hand if it's a card of the chosen type. Otherwise, put it back or into your graveyard.)

First strike
Whenever Scion of the Pack enters the battlefield or one or more creatures you control deal combat damage to an opponent or planeswalker, create a 2/2 green Hound creature token.

As an additional cost to cast Scorched-Earth Defence, reappropriate X times. (To reappropriate, exile exactly two cards from your hand and/or graveyard.)
Scorched-Earth Defence deals X damage to each creature and each planeswalker.

{T}: Add {C}.
{T}, Reappropriate: Add {G} or {W}. (Exile exactly two cards from your hand and/or graveyard.)

Search your library for a card, reveal it, then shuffle and put that card on top.
Kindle 3—{3}{B} ({3}{B}, Exile this card from your graveyard: Create three 1/1 colorless Elemental creature tokens. Kindle only as a sorcery.)

When Seductive Seashell enters the battlefield, target player mills two cards.
{2}, Sacrifice Seductive Seashell: Target player mills four cards.

{T}: Add {C}.
{T}, Reappropriate: Add {U} or {B}. (Exile exactly two cards from your hand and/or graveyard.)

Equipped creature gets +2/+0 and can't block.
Equip {1}

When Servant of Armageddon dies, destroy all creatures.

Menace
Servitor Vanguard gets +X/+X, where X is the number of other artifacts you control.

Vigilance
Sha'Iv's Emissary gets +1/+1 as long as you control a blue or red permanent.