Look at the top ten cards of your library, exile up to two creature cards from among them, then shuffle. Target opponent may choose one of the exiled cards and put it onto the battlefield under their control. Put the rest onto the battlefield under your control.

: Target creature can't block Duct Crawler this turn.

Permanents enter tapped this turn.

Draw a card.

First strike

Coven — At the beginning of combat on your turn, if you control three or more creatures with different powers, target creature you control gains double strike until end of turn.

No more than one creature can attack each combat.

No more than one creature can block each combat.

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

During your turn, Duelist of Deep Faith has first strike.

When Duelists' Convocation International enters the battlefield, choose a 10-digit number at random and write it down.

Whenever you play a land or cast a spell, if it shares a mana value with one or more uncrossed digits in the chosen number, cross out one of those digits and draw a card. Then if all ten digits are crossed out, you win the game.

Sacrifice Duergar Assailant: It deals 1 damage to target attacking or blocking creature.

When Duergar Hedge-Mage enters, if you control two or more Mountains, you may destroy target artifact.

When Duergar Hedge-Mage enters, if you control two or more Plains, you may destroy target enchantment.

Duggan's power and toughness are each equal to the number of cards in your hand.

Whenever Duggan enters or attacks, investigate.

The Most Important Punch in History — , : Duggan deals damage equal to twice its power to another target creature. Activate only once.

At the beginning of combat on your turn, another target creature you control gains haste and myriad until end of turn. (Whenever it attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

When Dukhara Scavenger enters, you may put target artifact or creature card from your graveyard on top of your library.

At the beginning of your upkeep, flip a coin. If you lose the flip, target opponent chooses whether Dumb Ass attacks this turn.

Reach

Lands you control and land cards you own that aren't on the battlefield are Deserts in addition to their other types.

Lands you control have ": Add one mana of any color."

: Mill two cards. You gain 1 life for each land card milled this way.

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

When Dune Mover enters, you may search your library for a basic land card, reveal it, then shuffle and put that card on top.

Whenever Dune-Brood Nephilim deals combat damage to a player, create a 1/1 colorless Sand creature token for each land you control.

Landfall — Whenever a land you control enters, if you don't control a Ring-bearer, the Ring tempts you.

: Add .

When Dunes of the Dead is put into a graveyard from the battlefield, create a 2/2 black Zombie creature token.

Commander creatures you own have "Room abilities of dungeons you own trigger an additional time."

Flying

When Dungeon Geists enters, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control Dungeon Geists.

Yawning Portal — You gain 1 life. (Leads to: Dungeon Level)

Dungeon Level — Scry 1. (Leads to: Goblin Bazaar, Twisted Caverns)

Goblin Bazaar — Create a Treasure token. (Leads to: Lost Level)

Twisted Caverns — Target creature can't attack until your next turn. (Leads to: Lost Level)

Lost Level — Scry 2. (Leads to: Runestone Caverns, Muiral's Graveyard)

Runestone Caverns — Exile the top two cards of your library. You may play them. (Leads to: Deep Mines)

Muiral's Graveyard — Create two 1/1 black Skeleton creature tokens. (Leads to: Deep Mines)

Deep Mines — Scry 3. (Leads to: Mad Wizard's Lair)

Mad Wizard's Lair — Draw three cards and reveal them. You may cast one of them without paying its mana cost.

Dungeoneer's Pack enters tapped.

, , Sacrifice Dungeoneer's Pack: You take the initiative, gain 3 life, draw a card, and create a Treasure token. Activate only as a sorcery. (A Treasure token is an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Flying

When Dunland Crebain enters, amass Orcs 2. (Put two +1/+1 counters on an Army you control. It's also an Orc. If you don't control an Army, create a 0/0 black Orc Army creature token first.)

Whenever you crank Duplication Device, until end of turn, target creature becomes a copy of any creature on the battlefield, except it's an artifact in addition to its other types.

: Return Durable Coilbug from your graveyard to your hand.

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

Whenever Durnan attacks, look at the top four cards of your library. You may exile a creature card from among them. Put the rest on the bottom of your library in any order. For as long as that card remains exiled, you may cast it. That spell has undaunted. (It costs ​ less to cast for each opponent.)

Choose a Background (You can have a Background as a second commander.)

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

Dusk Charger gets +2/+2 as long as you have the city's blessing.

Flying

Vigilance

Whenever one or more +1/+1 counters are put on Dusk Legion Duelist, draw a card. This ability triggers only once each turn.

When Dusk Legion Zealot enters, you draw a card and you lose 1 life.

As an additional cost to cast this spell, sacrifice an artifact or creature.

Ward

When Dusk Rose Reliquary enters, exile target artifact or creature an opponent controls until Dusk Rose Reliquary leaves the battlefield.

When Duskana, the Rage Mother enters, draw a card for each creature you control with base power and toughness 2/2.

Whenever a creature you control with base power and toughness 2/2 attacks, it gets +3/+3 until end of turn.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters with a +1/+1 counter on it.)

Flying

Duskmantle Operative can't be blocked by creatures with power 4 or greater.

Flying

At the beginning of your upkeep, each player reveals the top card of their library, loses life equal to that card's mana value, then puts it into their hand.

Enchant creature

You control enchanted creature.

Enchanted creature gets -3/-0 and loses all abilities.

Flying, protection from black

Suspend 3— (Rather than cast this card from your hand, you may pay and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.)

Kicker (You may pay an additional as you cast this spell.)

If Duskwalker was kicked, it enters with two +1/+1 counters on it and with fear. (It can't be blocked except by artifact creatures and/or black creatures.)

Boast — : Target opponent loses 1 life and you gain 1 life. (Activate only if this creature attacked this turn and only once each turn.)

Aftermath (Cast this spell only from your graveyard. Then exile it.)

Exile any number of target creatures that have -1/-1 counters on them.

: Add .

, , Sacrifice a land: Destroy target nonbasic land.

Flash (You may cast this spell any time you could cast an instant.)

Flying; fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

When Dust Elemental enters, return three creatures you control to their owner's hand.

Devoid (This card has no color.)

Haste

At the beginning of each end step, if you control no other colorless creatures, return Dust Stalker to its owner's hand.

Whenever you cast an enchantment spell, put a number of +1/+1 counters equal to that spell's mana value on up to one target creature.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

Flying

, Sacrifice two enchantments: Return Dutiful Griffin from your graveyard to your hand.

Return up to two target creature cards from your graveyard to your hand.

: Regenerate Dutiful Thrull.