msem-instigator

Perfect the Models deals 3 damage to any target and you gain 3 life. You may play an additional land this turn.
{5}{B}{R}{G}, Exile Perfect the Models from your graveyard: Create three 3/3 black Demon Horror creature tokens. They gain haste and indestructible until end of turn. Activate only as a sorcery.

Tap up to three target creatures. Those creatures don't untap during their controller's next untap step. Scry 3.

{2}{B}, {T}, Sacrifice another creature: Each opponent loses 2 life and you gain 2 life.

Siphon (Each -1/-1 counter you put on your creatures up to their remaining toughness while casting this pays for {1}.)
Creatures you control get +3/+2 and gain trample until end of turn.

Destroy target creature. Create a tapped 2/2 black Zombie creature token.

When Pestilent Vermin enters, target opponent loses 2 life unless they discard a card.
Whenever you cast a Tale, you may return Pestilent Vermin from your graveyard to your hand.

Whenever another creature you control enters, put a +1/+1 counter on a creature you control.

Choose any number of target nonland permanents each controlled by different players. For each of those permanents, return it to its owner's hand. If you returned a permanent you controlled this way, create a 3/3 green Plant Elemental creature token with reach.

Exile two cards from your graveyard: Petrified Guard becomes a 3/1 Zombie creature until end of turn.

Deathtouch, lifelink
Improve {1}{W/B} ({1}{W/B}: 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.)
{4}: Target creature gains deathtouch and lifelink until end of turn. Activate only during a player's first main phase.

This spell can't be countered.
Destroy target nonbasic permanent.

Flash
Whenever you cast a spell during an opponent's turn, put a +1/+1 counter
on Petty Thief.
Surpass {5}{U} ({5}{U}: Transform this. This costs {1} less to activate for each counter on
it. Activate only as a sorcery.)

Colossal 2—{1}{G}{G} (You may cast this for its colossal cost to have it enter with two +1/+1 counters; or pay {1}{G}{G} as a sorcery: Put two +1/+1 counters on it if it has none.)
Whenever a permanent you control with a counter on it becomes the target of a spell or ability an opponent controls, draw a card.

Create three 1/1 white Spirit creature tokens with flying.

Enchant creature you control
Enchanted creature has lifelink.
When Phantasmal Possession enters, exile target creature an opponent controls until Phantasmal Possession leaves the battlefield.

Deathtouch
Whenever Phantasmal Stalker deals damage to a planeswalker, destroy it.

Put a +1/+1 counter on each creature you control. If this spell was cast from a graveyard, those creatures gain flying until end of turn.
Flashback {5}{W}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

At the beginning of your end step, if there are three or more creature cards in your graveyard, put a +1/+1 counter on target creature you control.

{3}{U}, Reveal this card from your hand, Return an unblocked attacking creature you control to its owner's hand: Put Phasewalker Rake from your hand onto the battlefield tapped and attacking. If you returned a Pirate or Rogue this way, draw a card.

Whenever a creature you control dies, draw a card if it had power greater than its base power.

{T}, Sacrifice Phosphorescent Ravine: Search your library for an Island or Swamp card and put it onto the battlefield tapped, then shuffle.

When Phyrexian Arcforger enters, create a 1/1 colorless Phyrexian artifact creature token for each artifact you control.

Menace (This creature can't be blocked except by two or more creatures.)
Whenever a creature blocks, its controller loses 1 life.

{2}, {T}, Exile a card from your graveyard: Draw a card.

Double strike, menace
{R}{W}, Exile Picturesque Champion from your graveyard: Target creature you control gains double strike and menace until end of turn. Activate only as a sorcery.