msem-instigator

Descended Mortuary enters the battlefield tapped.
{T}: Add {W} or {B}.
Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Descended Towers enters the battlefield tapped.
{T}: Add {R} or {W}.
Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Desert Temple enters the battlefield tapped. As it does, an opponent of your choice chooses Oasis or Desiccation.
• Oasis — {T}: Add one mana of any color.
• Desiccation — {T}: Add {C}{C}. You lose 1 life.

{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast riddle spells.
{1}, {T}: Add one mana of any color.

({T}: Add {W} or {B}.)
Deserted Steppe enters the battlefield tapped unless you control two or more basic lands.

As Deserted Trail enters the battlefield, you may reveal a Swamp or Forest card from your hand. If you don't, Deserted Trail enters the battlefield tapped.
{T}: Add {B} or {G}.

Desiccated Trail enters the battlefield tapped unless you control another Desert.
{T}: Add {W} or {B}.

({T}: Add {W} or {B}.)
Desolate Barrens enters the battlefield tapped.

({T}: Add {R}, {W}, or {B}.)
Desolate Dominion enters the battlefield tapped.

Sacrifice a land: Desperate Ravager gets +2/+0 and gains haste until end of turn.

As Destroyed Isle enters the battlefield, you may pay 3 life. If you don't, it enters the battlefield tapped.
{T}: Add {W}, {U}, or {B}.

Trample
Creatures your opponents control get -1/-0.

As Dha-Bukan enters the battlefield, choose a basic land type. You may reveal a Desert card from your hand. If you don't, Dha-Bukan enters the battlefield tapped.
Deserts you control are the chosen type in addition to their other land types.

Hexproof

Hexproof

Dire Dive enters the battlefield tapped unless another player controls a land that could produce {B} or {R}.
{T}: Add {B} or {R}.

Dismal Backwater enters the battlefield tapped.
When Dismal Backwater enters the battlefield, you gain 1 life.
{T}: Add {U} or {B}.

As long as your deck contains only red and colorless cards, your minimum deck size is reduced by eight.

Spells your opponents cast cost {1} more to cast.
Spells you cast cost {1} less to cast.

At the beginning of your end step, if you have no cards in hand, draw a card.
{2}{U}, {T}: Sacrifice any number of nontoken creatures. Create an X/X blue Horror creature token for each of those creatures, where X is the total power of those creatures.

Dominik's Shack enters the battlefield tapped.
When Dominik's Shack enters the battlefield, you may mill two cards.
{T}: Add {B} or {G}.

Dragon Queen's Den enters the battlefield tapped.
{T}: Add {U}.
{U}, {T}: Scry 1. Activate only as a sorcery and only if you control a blue creature.

{T}: Add {C}.
{T}: Target land you control becomes the basic land type of your choice until end of turn.

{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.

{T}: Add {C}.
{T}, Reappropriate: Add {G} or {U}. (Exile exactly two cards from your hand and/or graveyard.)