msem-instigator

When Dawson's Bouncer enters, choose one —
• Put a +1/+1 counter on Dawson's Bouncer.
• Create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

Dawson's Collector can't block.
Whenever Dawson's Collector attacks, you may sacrifice another creature. If you do, create a tapped Treasure token.
Whenever you sacrifice your third permanent each turn, each opponent sacrifices a creature or planeswalker.

When Dawson's Enforcer enters, draw a card if you sacrificed a permanent or discarded a card this turn.

Haste
Slipstream (This creature can't be blocked as long as only creatures with slipstream are attacking.)
Spend only mana produced by artifacts to cast Dawson's Jetslicer.

When Dawson's Loot enters, mill two cards, then draw a card.
{1}, {T}, Sacrifice Dawson's Loot: Add one mana of any color.

Dawson's Marauder can't block.
When Dawson's Marauder attacks, it can't be blocked this turn unless defending player sacrifices an artifact.

When Dawson's Warden enters, create a Treasure token.
As long as you control three or more artifacts, Dawson's Warden gets +2/+0 and has first strike.

Whenever you draw a card, choose one —
• Dayang's Artistry deals 1 damage to any target.
• You gain 1 life.
• Scry 1.

Lifelink
At the beginning of each player's end step, that player discards each card in their hand, then draws that many cards. When no cards are discarded this way, Dayang, Aspiring Muse deals 2 damage to each opponent.

When Daybreak enters, you gain 3 life.
Creatures can't attack you or planeswalkers you control unless their controller pays {1} for each of those creatures.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature you don't control blocks, it gets -1/-0 until end of turn.

{2}{G}{U}: Target creature you control voyages. (If it isn't blocking or targeted by another spell or ability, it phases out.)
Whenever a creature you control phases in, draw a card.

Flying, lifelink
When Daystrider Pegasus enters, exile another target non-Pegasus permanent you control, then return it to the battlefield under its owner's control.

Tap two untapped Elves you control: Add {G}{G}.
{6}{G}{G}: Create an 8/8 green Elemental creature token.

Dazzling Duelist has first strike as long as it's attacking.
{2}{R}: Dazzling Duelist gets +2/+0 until end of turn.

When Dazzling Festivities enters or at the beginning of your upkeep, you may have each player reveal the top card of their library. Starting with you, each player may cast a nonland card revealed this way without paying its mana cost.

Flash (You may cast this spell any time you could cast an instant.)
When Dazzling Voidmage enters, you may return target attacking creature to its owner's hand.

Augmented — When Dead End Adventurer enters, if you've spent {W}{U}{B}{R}{G} to cast spells this turn, destroy target creature you don't control.

Equipped creature gets +4/+2.
Equip—Sacrifice a creature. (Sacrifice a creature: Attach to target creature you control. Equip only as a sorcery.)

Dead Man's Hand enters tapped.
{T}, Sacrifice Dead Man's Hand, two permanents with mana value 1, and two permanents with mana value 8: Target player loses the game.

At the beginning of your upkeep, you may choose a color, then exile two cards of that color from your graveyard. If you do, return a creature, instant, or sorcery card of that color from your graveyard to your hand.

Dead-Set Duo can't block.
Whenever Dead-Set Duo deals combat damage to a player, you may pay {B} and sacrifice it. If you do, they discard two cards.

Primal {R} (During your turn, you may cast this spell for {R} instead of playing a land.)
When Deadeye Drowner enters, it deals 2 damage to any target.

Vigilance
Whenever one or more cards leave your graveyard, surveil 1.

Engorge (As this enters, mill three cards, then exile a card from among the milled cards.)
Deadland Mongrel gets +1/+1 if it engorged a creature card with power 3 or greater.