msem-instigator

(Add a quest counter as this enters. Sacrifice after 6.)
Whenever a land enters the battlefield under your control, add a quest counter.
1, 2, 3, 4, 5, 6 — Reveal the top card of your library. If it's a land card, put it into your hand. Otherwise, you may put it into your graveyard.
Until end of turn, creatures you control get +5/+5 and gain vigilance, trample, and haste.
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{1}{G}: Marrow Gorger must be blocked this turn if able.

Flash
Flying
When Mending Valkyrie enters the battlefield, choose target permanent you own or permanent card with mana value 3 or less in your graveyard. You may return it to your hand.

Enchant creature
Enchanted creature gets +3/+3 and has trample.

Glitch {2} (Remove one [restriction] for each time you pay the glitch cost.)
Create a 3/2 red creature token named Error with trample and haste. [Exile it at the beginning of the next end step.]

Vigilance
{7}{G}: Molting Linnorm gets +5/+5 and gains trample until end of turn.

Target creature gets +4/+3 until end of turn. Put a trample counter on it.

Deathtouch
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

Haste
Whenever Mukal Charger attacks during your first combat phase each turn, untap all Constructs you control. After this phase, there's an additional main phase followed by an additional combat phase.
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

Trample, haste
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)
At the beginning of your end step, sacrifice a creature.

Haste
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

As an additional cost to cast this spell, pay {3} or discard a card.
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

Trample
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

When Mukal Reaper enters the battlefield, you draw a card and you lose 2 life.
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

Whenever Mukal Sire or another Construct enters the battlefield under your control, Mukal Sire deals 1 damage to each opponent.
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

When Mukal Swarmhorde enters the battlefield, put a +1/+1 counter on each other Construct you control.
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)
Whenever Mukal Warleader attacks, the next Construct spell you cast this turn costs {1} less to cast.

{T}: Add {C}. Spend this mana only to cast a creature spell with a creature type no creature you control has.

Mill three cards. Create a 1/1 black Skeleton creature token for each creature card milled this way. You draw a card and you lose 1 life for each noncreature card milled this way.

Look at the top seven cards of your library. You may reveal an Avatar card and/or an enchantment card from among them and put those cards onto the battlefield. Put the rest on the bottom of your library in any order.

Flying, trample
Nether Fiend enters the battlefield with a lifelink counter on it.
{B}{B}, Pay 6 life, Remove a lifelink counter from Nether Fiend: Draw six cards.

This spell costs {X} less to cast, where X is the greatest power among creatures you controlled that died this turn.
Flash
Flying, trample

Menace
Whenever you cast a glitched spell, Null Entity gets +2/+0 until end of turn for each time that spell was glitched.

When Occult Mastermind enters the battlefield, create two 2/2 black Zombie creature tokens. When Occult Mastermind is no longer on the battlefield, sacrifice two Zombies.