You may sacrifice a Mountain rather than pay this spell's mana cost.

Target creature gets +X/+0 until end of turn, where X is the number of Mountains you control.

Whenever Dowsing Device or another artifact enters the battlefield under your control, up to one target creature you control gets +1/+0 and gains haste until end of turn. Then transform Dowsing Device if you control four or more artifacts.

When Draconian Gate-Bot enters the battlefield, choose one —

• Open an Attraction. (Put the top card of your Attraction deck onto the battlefield.)

• Destroy target Attraction. (It's put into its owner's junkyard.)

Create a 2/2 white and blue Detective creature token. If a creature died this turn, you gain 2 life, surveil 2, then investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

This spell costs less to cast, where X is your devotion to black. (Each in the mana costs of permanents you control counts toward your devotion to black.)

Destroy target creature.

Skip your draw step.

Whenever you sacrifice a creature, you may draw a card.

Vigilance

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Enchant creature

Enchanted creature has haste.

: Enchanted creature gets +1/+0 until end of turn.

When a creature with mana value 6 or greater enters the battlefield, you may return Dragon Breath from your graveyard to the battlefield attached to that creature.

Commander creatures you own have "At the beginning of your end step, if a source you controlled dealt 5 or more damage this turn, create a 4/4 red Dragon creature token with flying."

: Dragon Engine gets +1/+0 until end of turn.

Create two 1/1 red Goblin creature tokens.

Flying

: Dragon Hatchling gets +1/+0 until end of turn.

Flying

Whenever Dragon Mage deals combat damage to a player, each player discards their hand, then draws seven cards.

, : Target creature you control gets +2/+2 until end of turn. Return it to its owner's hand at the beginning of the next end step. (Return it only if it's on the battlefield.)

Enchant creature

Enchanted creature gets +1/+2 and has vigilance.

When a creature with mana value 6 or greater enters the battlefield, you may return Dragon Scales from your graveyard to the battlefield attached to that creature.

Whenever a creature with flying enters the battlefield under your control, it gains haste until end of turn.

Whenever a Dragon enters the battlefield under your control, it deals X damage to any target, where X is the number of Dragons you control.

Flash

Drag Below — When Dragon Turtle enters the battlefield, tap it and up to one target creature an opponent controls. They don't untap during their controllers' next untap steps.

Flying

: Dragon Whelp gets +1/+0 until end of turn. If this ability has been activated four or more times this turn, sacrifice Dragon Whelp at the beginning of the next end step.

Enchant creature

Enchanted creature has flying.

Cycling (, Discard this card: Draw a card.)

When a creature with mana value 6 or greater enters the battlefield, you may return Dragon Wings from your graveyard to the battlefield attached to that creature.

: Dragonborn Immolator gets +1/+0 until end of turn.

Gift of Tiamat — When Dragonborn Immolator dies, note its power. You get a boon with "When you cast your next creature spell, it perpetually gets +X/+0, where X is the noted number."

Whenever Dragonfly Pilot enters the battlefield, conjure a card named Dragonfly Suit into your hand.

Dragonfly Pilot crews Vehicles as though its power were 2 greater.

Whenever Dragon-Kami's Egg or a Dragon you control dies, you may cast a creature spell from among cards you own in exile with hatching counters on them without paying its mana cost.

Reach

Whenever an opponent casts a spell, create a 1/1 green Insect creature token.

Flying, trample

When Dragonlord Atarka enters the battlefield, it deals 5 damage divided as you choose among any number of target creatures and/or planeswalkers your opponents control.

Flying, haste

Other creatures you control have haste.

Whenever an opponent casts a creature or planeswalker spell with the same name as a card in their graveyard, that player loses 10 life.

Flying, deathtouch

When Dragonlord Silumgar enters the battlefield, gain control of target creature or planeswalker for as long as you control Dragonlord Silumgar.

Dragon spells you cast cost less to cast.

Add for each attacking creature you control. Until end of turn, attacking creatures you control gain ": This creature gets +1/+0 until end of turn."

Whenever a player casts a red spell, you may gain 1 life.

Morph—Reveal a blue card in your hand. (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Dragon's Eye Savants is turned face up, look at target opponent's hand.

As an additional cost to cast this spell, you may reveal a Dragon card from your hand or choose a Dragon you control.

Dragon's Fire deals 3 damage to target creature or planeswalker. If you revealed a Dragon card or chose a Dragon as you cast this spell, Dragon's Fire deals damage equal to the power of that card or creature instead.

Whenever a Dragon enters the battlefield under your control, put a gold counter on Dragon's Hoard.

, Remove a gold counter from Dragon's Hoard: Draw a card.

: Add one mana of any color.

Whenever you cast a noncreature spell, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Delirium — As long as there are four or more card types among cards in your graveyard, Dragon's Rage Channeler gets +2/+2, has flying, and attacks each combat if able.

At the beginning of your end step, bolster X, where X is the number of tapped creatures you control. (Choose a creature with the least toughness among creatures you control and put X +1/+1 counters on it.)

Magecraft — Whenever you cast or copy an instant or sorcery spell, put a +1/+1 counter on Dragonsguard Elite.

: Double the number of +1/+1 counters on Dragonsguard Elite.

Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain.

: Add or .

Whenever Dragonspark Reactor or another artifact enters the battlefield under your control, put a charge counter on Dragonspark Reactor.

, Sacrifice Dragonspark Reactor: It deals damage equal to the number of charge counters on it to target player and that much damage to up to one target creature.

Flying, protection from Dragons

Double strike

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Flash

Flying

When Draining Whelk enters the battlefield, counter target spell. Put X +1/+1 counters on Draining Whelk, where X is that spell's mana value.

Drakestown Forgotten enters the battlefield with X +1/+1 counters on it, where X is the number of creature cards in all graveyards.

, Remove a +1/+1 counter from Drakestown Forgotten: Target creature gets -1/-1 until end of turn.

Your opponents can't cast spells from anywhere other than their hands.

If a nontoken creature an opponent controls would die, exile that card with an ice counter on it instead.

You may cast spells from among cards in exile your opponents own with ice counters on them, and you may spend mana from snow sources as though it were mana of any color to cast those spells.

When Draugr Thought-Thief enters the battlefield, look at the top card of target player's library. You may put that card into their graveyard.

As Drawn Together enters the battlefield, choose an artist.

Creatures with art by the chosen artist get +2/+2.

Cleave (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)

Target player reveals their hand. You choose a nonland card from it with mana value 2 or less. That player discards that card.

Trample

Dread Slag gets -4/-4 for each card in your hand.

At end of combat, put a paralyzation counter on each creature blocking or blocked by Dread Wight and tap those creatures. Each of those creatures doesn't untap during its controller's untap step for as long as it has a paralyzation counter on it. Each of those creatures gains ": Remove a paralyzation counter from this creature."

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

: Dreadlight Monstrosity can't be blocked this turn. Activate only if you own a card in exile.

Whenever Dream Fighter blocks or becomes blocked by a creature, Dream Fighter and that creature phase out. (While they're phased out, they're treated as though they don't exist. Each one phases in before its controller untaps during their next untap step.)