msem-instigator

When this creature enters, you may return another target creature you control to its owner's hand. If you do, create a Treasure token.

Defender
When Demonrune Wall enters, exile target creature or enchantment an opponent controls until Demonrune Wall leaves the battlefield.

Flying
When Departed Butler enters, draw a card.

Whenever this creature attacks, if you gained or lost life this turn, it gains flying until end of turn.
When this creature dies, create a 2/2 black Zombie creature token.

When Desperate Botanist enters, create a 0/1 green Plant creature token with “{T}: Add {G}.”
{5}{G}: Transform Desperate Botanist. Activate only if it's attacking.

As long as this creature isn't a Zombie, it and other Knights and Soldiers you control get +1/+1 and have vigilance. Otherwise, it and other Zombies you control get +1/+1 and have menace.
Arise {1}{W}{B} ({1}{W}{B}, Exile this from your graveyard as a sorcery: Create a black token copy of it that's also a Zombie and can't block.)

Siphon (Each -1/-1 counter you put on your creatures up to their remaining toughness while casting this pays for {1}.)
Search your library for up to two Forest cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Flying
Whenever another creature dies, each opponent loses 1 life and you gain 1 life.

Siphon (Each -1/-1 counter you put on your creatures up to their remaining toughness while casting this pays for {1}.)
Create an X/X green and blue Dryad creature token with ward {2}.

Flying, vigilance
{2}{G}: Return target creature you control to its owner's hand. If you do, this creature gets +2/+2 and gains trample until end of turn.

If an effect you control other than a siphon ability would put a counter on a permanent, you may put a flying, vigilance, or stun counter on that permanent instead.

Menace
Whenever Diregraf Skulleater deals combat damage to a player, that player discards a card.
Whenever one or more cards leave your graveyard, put a +1/+1 counter on Diregraf Skulleater.

Choose two nonland permanent types. Exile each permanent that's at least one of the chosen types.
Flashback {8}{W}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Doomsday Horde enters tapped unless it was foreshadowed.
When Doomsday Horde dies, search your library for a card, put it into your hand, then shuffle.
Foreshadow {3}{B}{B}{B} (You may cast this spell for its foreshadow cost. If you do, also trigger its “dies” abilities when it enters.)

Whenever another creature dies, you gain 1 life.
At the beginning of each end step, if you gained 3 or more life this turn, transform Dowager of Traublassen.

Exile target creature with power 3 or less. You gain 3 life.

When Dread Elk dies, put a +1/+1 counter on target creature you control. If that creature is a Zombie, put two +1/+1 counters on it instead.
Foreshadow {5}{B} (You may cast this spell for its foreshadow cost. If you do, also trigger its “dies” abilities when it enters.)

At the beginning of your end step, mill two cards and you lose 2 life.
Arise {3}{B}{R} ({3}{B}{R}, Exile this from your graveyard as a sorcery: Create a black token copy of it that's also a Zombie and can't block.)

When this creature enters, you may sacrifice a creature. If you do, you draw a card and you lose 1 life.
Arise {2}{B} ({2}{B}, Exile this from your graveyard as a sorcery: Create a black token copy of it that's also a Zombie and can't block.)

When this enchantment enters, create a 1/1 white Peasant creature token.
{B/R}, Sacrifice a creature: Exile the top card of your library. You may play that card this turn.

First strike
{4}{W}, {T}: Target creature gets +2/+1 and gains first strike until end of turn. Activate only as a sorcery.

Menace
Spells you cast from your graveyard cost {2} less to cast.
Whenever Drownyard Captain attacks, if a card left your graveyard this turn, draw a card.

Whenever Drownyard Colossus or another creature you control enters, any number of target players each mill cards equal to that creature's toughness.
{2}{U}{B}, {T}: Draw a card, then create a 0/3 blue Crab creature token with “{T}: Target player mills a card.”

When Druid's Grimoire enters, create two 2/2 green Wolf creature tokens.
{T}: Add {G}.

Defender
When Drunau Egg enters, target player mills two cards.
{3}{U}{U}: Transform Drunau Egg. Activate only as a sorcery and only if an opponent has thirteen or more cards in their graveyard.