msem-instigator

Exile any number of target creatures you control, then return those creatures to the battlefield under their owner's control.

Dreamscaper enters tapped with three stun counters on it. (If it would become untapped, remove a stun counter from it instead.)
Whenever you cast your second spell each turn, you may untap Dreamscaper or tap target creature.
Whenever Dreamscaper deals combat damage to a player, draw two cards.

When Dreamsight Well enters, shuffle any number of cards you own from outside the game into your library.
Whenever you cast a creature spell, if you have more cards in your library than each opponent, draw a card.

Whenever an Aura you control enters, draw a card.
You may cast Aura spells from your graveyard if that card wasn't put into your graveyard this turn.

Choose one —
• Create two 1/1 black Worm creature tokens.
• Put up to two target cards from your graveyard on top or bottom of your library.

Double strike, trample, indestructible, haste
When Dredgeline Colossus enters, salvage up to eight noncreature, nonland cards. (You may exile them from your graveyard until this creature leaves the battlefield. Whenever this creature deals combat damage to a player, put a card it salvaged into your hand.)

{1}{B}, Mill three cards: Return Dredging Aberration from your graveyard to your hand.

Vanishing 3 (This permanent enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
Whenever Dregs of Order enters or a time counter is removed from it, exile target creature until Dregs of Order leaves the battlefield.

Return up to one target creature card from your graveyard to the battlefield tapped. You gain 2 life.
Tether (Then if you cast this from your hand, you may exile it tethered to a creature you control. When it dies, you may cast this from exile without paying its mana cost.)

When Dregscape Wretch dies, create a 2/2 black Zombie creature token.

You may look at the top card of your library any time.
You may play the top card of your library if it's a land card or a creature card with power 2 or less.

Enchant creature
Whenever a creature dealt damage by enchanted creature this turn dies, put a +1/+1 counter on enchanted creature.
When enchanted creature dies, draw a card.

When Drift Tracer enters, search your library for a basic land card that shares a type with a basic land you control and put it onto the battlefield tapped, then shuffle.

When Drifting Warden enters, exile another target creature until Drifting Warden leaves the battlefield.
{3}{W}: Exile Drifting Warden. Return it to the battlefield under its owner's control at the beginning of the end step.

When Driftpicker enters, you may return another non-Crab creature you control to its owner's hand. If you do, create two 1/1 white Bird creature tokens with flying.

Creatures you control get +1/+1 until end of turn. Merfolk you control get an additional +1/+1 until end of turn.

Each player mills five cards.
Coalesce {4}{U}{B} (You may cast this from your graveyard for {4}{U}{B}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)
Drink Thoughts Like Oil can't be blocked.

Whenever you cast a spell during an opponent's turn, creatures you control get +0/+1 until end of turn.

Gain control of target creature until end of turn. Untap it. It gets +2/+0 and gains haste until end of turn.

Enchant creature
Whenever enchanted creature becomes tapped, return it and Driven to Distraction to their owner's hands.

Menace, haste
Other Centaurs you control get +1/+0.

When Driver of Hordes enters, create a tapped 2/2 black Zombie creature token.
Unearth {3}{B} ({3}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the end step or if it would leave the battlefield. Unearth only as a sorcery.)

{2/G}, {T}: Put a +1/+1 counter on target creature you control.

When Drop Bear enters, return another target permanent that isn't a land an opponent controls or a card in a graveyard to its owner's hand.

As Drop of Envy enters, choose a nonland permanent card name.
All cards not on the battlefield, spells, and permanents with the chosen name are legendary.