msem-instigator

(Add a quest counter as this enters. Sacrifice after 3.)
Whenever you cast a noncreature spell, add a quest counter.
1, 2 — Draw a card, then discard a card.
3 — Return up to two target instant and/or sorcery cards from your graveyard to your hand.
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{3}{B}, Exile Screeching Duneborn from your graveyard: You gain 1 life and draw a card.

Return target cryptic card from your graveyard to your hand. (Artifacts, enchantments, and modal spells are cryptic.)

Menace
Whenever Searing Sandwurm is dealt damage, it deals that much damage to target player or planeswalker.

As Secrets of the Orrery enters, choose fact or fiction.
Foresight — Whenever you draw your second card each turn,
• Fact — Target creature can't be blocked this turn.
• Fiction — You may tap target creature. If you do, put a stun counter on it.

Choose one or more —
• Target player draws two cards.
• Counter target spell.

(Add a quest counter as this enters. Sacrifice after 3.)
Whenever a creature you control enters, add a quest counter.
1 — You gain 3 life.
2 — Search your library for an Equipment card, reveal it, and put it into your hand. Then shuffle.
3 — You may put an Equipment card from your hand onto the battlefield and attach it to a creature you control.

(Add a quest counter as this enters. Sacrifice after 3.)
Whenever you attack, add a quest counter.
1 — Create a 0/1 white Human creature token named Lost Child.
2 — Scry 2.
3 — Exile a token you control named Lost Child. If you do, create two 1/1 white Soldier creature tokens and you gain 4 life.

(Add a quest counter as this enters. Sacrifice after 3.)
Whenever another artifact or enchantment you control enters, add a quest counter.
1, 2 — You gain 3 life.
3 — Mill three cards, then return an artifact or enchantment card from your graveyard to the battlefield. Exile Seek the Maker's Egg.
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Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)
Whenever Seeker of Ruins deals combat damage to a player, put a +1/+1 counter on it.

Enchant creature
Enchanted creature gets +2/+2.
When Seeking Horizons is put into your graveyard from anywhere other than your library, investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

Flying
Whenever Seer of Clear Skies or another creature you control with flying attacks, that creature gets +1/+1 until end of turn.

Until end of turn, target creature you control gains double strike and trample. Sacrifice it at the beginning of the next end step.
Draw a card.

Whenever a quest counter is put on a permanent you control, upgrade Selvar, the Seeker. (Give it one of the listed counters it doesn't already have.)
• +1/+1
• First strike
• Vigilance
• Reach
• Trample
• Lifelink

This spell can't be countered.
Flying, protection from cryptic
Whenever you cast a cryptic spell, cast a Sphinx spell, or draw a card, investigate.
{T}, Sacrifice ten Clues: You win the game.

Enchant creature
Enchanted creature can't attack or block.

When Shambling Retinue dies, create a 2/2 black Zombie creature token.

Target creature you control deals damage equal to its power to target creature you don't control.
Whenever a creature you control with deathtouch deals damage to an opponent, you may sacrifice that creature. If you do, return Shedding of the Coils from your graveyard to your hand.

Search your library for a Desert card or a land card with a basic land type and put it onto the battlefield tapped, then shuffle.

Non-Avatar creatures can't attack you or planeswalkers you control unless their controller pays {2} for each of those creatures.

Flash
You may cast cryptic spells as though they had flash. (Artifacts, enchantments, and modal spells are cryptic.)

Enchant creature
When Sink Beneath the Sands enters, target player loses 2 life and you gain 2 life.
Enchanted creature gets -4/-4.

Trample
Skalnir, Ruinbringer enters with X +1/+1 counters on it.
When Skalnir, Ruinbringer enters, it deals damage equal to the number of +1/+1 counters on it to each creature without trample.

When Skelephant enters, you may mill three cards.
Foresight — Whenever you draw your second card each turn, you may put target creature card from your graveyard on top of your library.

Choose target creature you don't control. When that creature dies this turn, draw a card. Target creature you control fights that creature.