msem-instigator

When CySec Spectre enters, you may sacrifice a creature. If you do, target opponent loses 3 life and you gain 3 life.

Flying
Other creatures you control with flying get +1/+1.
Whenever Czeros, Sky Prowler deals combat damage to a player, you may pay {1}{W/U}. If you do, search your library for a creature card with flying, reveal it, put it into your hand, then shuffle.

When Damaris Alfahir enters, for each opponent, put a bribery counter on an artifact or creature that player controls.
At the beginning of your upkeep, gain control of target permanent with a bribery counter on it until end of turn. Untap it. It gains haste until end of turn.

Vigilance
Whenever Danuri Banisher deals combat damage to a player, you may exile target creature. If you do, return that card to the battlefield under its owner's control at the beginning of the next end step.

At the beginning of each opponent's upkeep, exile Daril's Timewalker and up to one other target nonland permanent you control, then return those cards to the battlefield under their owner's control.

When Dark Apprentice enters, mill three cards, then return a creature card from your graveyard to your hand.

Choose three. You may choose the same mode more than once.
• Each opponent sacrifices a creature.
• Each opponent loses 2 life and you gain 2 life.
• Choose a player and look at their hand. Choose a nonland card from among them. They discard it.

This spell costs {2} less to cast if an opponent was dealt combat damage this turn.
When Dastardly Duo enters, audition for black. (Create a 1/1 Construct Actor creature token, a Cleric Role giving 2/2 and lifelink, or a Warlock Role giving 2/1 and flying. Roles replace older ones.)

Put all attacking creatures on top of their owners' libraries.

Protection from Dusk Chord (This creature can't be blocked, targeted, dealt damage, or enchanted by anything named Dusk Chord.)
{1}{W}: Target Reflection's base toughness becomes equal to Dawn Chord's toughness until end of turn.

Return up to one target creature card from a graveyard to the battlefield under your control.
Coalesce {9}{B} (You may cast this from your graveyard for {9}{B}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)
Indestructible

Wu Xing (Add effects based on the number of colors of mana spent to cast this spell.)
1 | Return target creature card from your graveyard to the battlefield.
5 | It gains vigilance, trample, lifelink, indestructible, and haste until end of turn.

Engorge (As this enters, mill three cards, then exile a card from among the milled cards.)
When Deadland Summoner dies, you may put the card it engorged into your hand. If that card is an instant or sorcery card, you may instead cast it without paying its mana cost.

Return target creature card from your graveyard to the battlefield. If it's your combat phase, that creature enters tapped and attacking.

{4}, {T}, Exile Deathwind Detonator: Destroy all nonland permanents. Each player gets an emblem with “At the beginning of your upkeep, you lose 1 life.”

Archive 5 (As this enters, shuffle the top five cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
Whenever you draw a permanent card from the archived library, you may have Defect's Study become a copy of it until end of turn.

When Defiler of Farmsteads enters, each opponent loses 2 life and you gain 2 life.

Dekinn, Depths Spirit can't attack or block unless a player has lost 3 or more life this turn.
At the beginning of each player's upkeep, that player may create a Mountain token. If they do, Dekinn deals 3 damage to them.
When Dekinn dies or is put into exile from the battlefield, you may put him into his owner's library third from the top.

Creatures you control get +1/+1 for each noncreature spell you've cast this turn.
When Deliverance Branch enters, create three 1/1 white Cleric creature tokens with lifelink.

When Delugic Surger enters, if you control another Elemental, return target instant or sorcery card from your graveyard to your hand.

Whenever an opponent casts a spell, harmonize. (Trigger up to one harmony of a permanent you control.)
Harmony — Spells your opponents cast cost an additional 2 life to cast until your next turn.

When Depthlight Brute enters, if you control three or more artifacts, each opponent loses 3 life and you gain 3 life.

Flying
When Derevi's Adjutant enters, put a +1/+1 counter on each other creature you control.
Cycling {2} ({2}, Discard this card: Draw a card.)
When you cycle Derevi's Adjutant, exile it. You may cast it from exile for as long as it remains exiled.

When Derrivan Brawnmage enters, target creature gets +3/+3 and gains trample until end of turn.

This spell costs {1} less to cast for each card you've drawn this turn.
Return up to three target creatures with total mana value 5 or less from your graveyard to the battlefield.