msem-instigator

Each creature card you own that isn't on the battlefield has madness. The madness cost is equal to its mana cost. (If you discard a card with madness, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
{T}, Discard a card: Dragonlord's Shrine deals 2 damage to any target.

Spirited (When this creature enters, you may activate one of its activated abilities without paying its cost.)
Dragonmaw Wurm enters with X +1/+1 counters on it.
{1}{G}, {T}: Target creature you control fights another target creature.

Spirited (When this creature enters, you may activate one of its activated abilities without paying its cost.)
{3}{R}: When target creature dies this turn, create a 2/2 red Dragon creature token with flying and “{R}: This creature gets +1/+0 until end of turn.”

Defender
A deck can have any number of cards named Dragonwall Fragment.
At the beginning of your upkeep, if you control twenty or more creatures named Dragonwall Fragment, you win the game.

{T}: Add {C}.
Tap an untapped creature you control: Dragonwall Gates becomes a 0/4 Wall artifact creature with defender until end of turn. It's still a land.

Search your library for a basic land card and put that card onto the battlefield tapped, then shuffle.
Create a Vial token. (It's an artifact with “{1}, Sacrifice this and another permanent: Draw a card. Activate only during your turn.”)

Prowess
At the beginning of combat on your turn, if a permanent you controlled left the battlefield this turn, target creature can't block this turn.

Pressure {G} (You may cast this spell for its pressure cost if seven or more cards are in your graveyard.)
Return target card from your graveyard to your hand. Exile Drawn to the Light.

Flying
When Dreadstone Watcher dies, investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

Menace
Crew 3 (Tap any number of creatures you control with total power 3 or greater: This Vehicle becomes an artifact creature until end of turn.)

As an additional cost to cast this spell, discard a card.
Draw two cards. Add one mana of any color.

Dreamchaser Djinni attacks each combat if able.

Choose one or all —
• Dreamfire deals X damage to target creature.
• Dreamfire deals X damage to each player.
• Target creature gets +X/+0 until end of turn.

Protection from Spirits
At the beginning of each end step, if a card was put into exile or a graveyard from anywhere this turn, draw a card.

Dreamscape enters tapped with two charge counters on it.
{T}: Add {C}.
{T}, Remove a charge counter from Dreamscape: Add one mana of any color.

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.)

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.

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

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

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

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.

Drown deals 2 damage to target creature. That creature can't block this turn.

Whenever you cast a blue spell, you may cast creature spells this turn as though they had flash.
Whenever you cast a black spell, put up to one target card from your graveyard on top of your library.