msem-instigator

Menace
At the beginning of your end step, if Vartrossen Vandals didn't attack this turn, transform it.

Menace

Harmony — Creatures you control gain double strike until end of turn.
When Twirling Duet enters, harmonize. (Trigger up to one harmony of one permanent you control.)

When Harpooned Bubbledomer enters, mill four cards.
Harpooned Bubbledomer gets +2/+0 and has menace as long as there are four or more card types among cards in your graveyard.

Choose target player, then choose two —
• That player loses 2 life.
• That player draws two cards.
• Put two -1/-1 counters on target creature that player controls.

Whenever you cast an Inscription spell, you may choose target creature you control. If you do, as that Inscription resolves, exile it inscribed onto that creature instead of putting it anywhere else.

{T}, Sacrifice Adaptive Terrains: Search your library for a basic land card and put it onto the battlefield tapped, then shuffle.

When Crinster Falconer enters, create a 1/1 blue Bird creature token with flying.

When Sunken Grave enters, create a tapped 2/2 black Zombie creature token.
{5}, {T}, Sacrifice Sunken Grave: Create a tapped 2/2 black Zombie creature token.

The first spell you cast each turn costs {1} less to cast.

Whenever The First Idol attacks, create an Idol token. (It's an artifact with “{1}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.”)
Sacrifice three Idols: Return The First Idol from your graveyard your hand.

Spells your opponents cast that target Danithra Muckbruiser cost {2} more to cast.
Danithra Muckbruiser gets +X/+X, where X is the number of cards in your graveyard minus seven. (If there are fewer than seven, it gets +0/+0.)

[+1]: Draw a card. Each player loses 1 life.
[–2]: Create two 1/1 black Bat creature tokens with flying and lifelink.
[–3]: Target creature gets -13/-13 until end of turn. You control abilities of that creature that trigger this turn.

{3}: Wildwood Keeper gets +3/+2 until end of turn. Activate only once each turn.

Target player mills a card. Create a 3/2 colorless Horror creature token. Put a decayed counter on it. (It can't block. When it attacks, sacrifice it at end of combat.)

Target player draws X cards and loses X life.

Vigilance
Whenever Kardox, Hero of Skophos attacks, mill three cards, then return a Minotaur creature card from your graveyard to the battlefield tapped and attacking.
Discard a card: Kardox gains indestructible until end of turn. Tap it.

At the beginning of each player's upkeep, you may exile target permanent that player controls. If you do, return that card to the battlefield under its owner's control at the beginning of the next end step.

Silent Hunt deals 3 damage to target creature and you gain 3 life.
Forebode. (Create a tapped colorless Omen artifact token with “{T}, Discard a card, Sacrifice this artifact: Draw a card.”)

As long as it's your turn, equipped creature has first strike and deathtouch.
If equipped creature would deal damage to a player or planeswalker, it deals four times that damage to that player or planeswalker instead.
Equip {4}

When Mana Rose enters, you gain 2 life and scry 2.
{1}, {T}: Add one mana of any color.

({T}: Add {G} or {W}.)
As Ruptured Meadow enters, you may pay {1}. If you don't, Ruptured Meadow enters tapped.

Ripplecore Trails enters tapped.
{T}: Add {R} or {G}.
{R}{G}, {T}, Sacrifice Ripplecore Trails: Conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)

Scry 3, then reveal the top card of your library. Target creature gains trample and gets +X/+X until end of turn, where X is that card's mana value.

When Tinker Tantrum enters and at the beginning of your upkeep, you may sacrifice an artifact. If you do, reveal cards from the top of your library until you reveal an artifact card with mana value X or less, where X is 1 plus the sacrificed artifact's mana value. Put that card onto the battlefield and the rest on the bottom of your library in a random order.