Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control."
{1}{R}
Abrade
Instant
Choose one --
• Abrade deals 3 damage to target creature.
• Destroy target artifact.
{1}{W}
Adamant Will
Instant
Target creature gets +2/+2 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)
{1}{W}
Aegis of the Heavens
Instant
Target creature gets +1/+7 until end of turn.
{3}{U}
Aetherize
Instant
Return all attacking creatures to their owner's hand.
{B}
Alchemist's Gift
Instant
Target creature gets +1/+1 and gains your choice of deathtouch or lifelink until end of turn. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it. Damage dealt by a creature with lifelink also causes its controller to gain that much life.)
{3}{G}
Ambitious Dragonborn
Creature - Dragon Barbarian
Ambitious Dragonborn enters the battlefield with X +1/+1 counters on it, where X is the greatest power among creatures you control and creature cards in your graveyard.
0 /
0
{3}{W}
Angelic Exaltation
Enchantment
Whenever a creature you control attacks alone, it gets +X/+X until end of turn, where X is the number of creatures you control.
{1}{U}
Anticipate
Instant
Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.
{1}{W}
Artful Maneuver
Instant
Target creature gets +2/+2 until end of turn.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)
{2}{U}
As Foretold
Enchantment
At the beginning of your upkeep, put a time counter on As Foretold.
Once each turn, you may pay {0} rather than pay the mana cost for a spell you cast with mana value X or less, where X is the number of time counters on As Foretold.
{4}{G}
Avenging Hunter
Creature - Dragon Ranger
Trample
When Avenging Hunter enters the battlefield, you take the initiative.
5 /
4
--
Azorius Chancery
Land
Azorius Chancery enters the battlefield tapped.
When Azorius Chancery enters the battlefield, return a land you control to its owner's hand.
{T}: Add {W}{U}.
{W}{U}
Azorius Charm
Instant
Choose one --
• Creatures you control gain lifelink until end of turn.
• Draw a card.
• Put target attacking or blocking creature on top of its owner's library.
--
Azorius Guildgate
Land - Gate
Azorius Guildgate enters the battlefield tapped.
{T}: Add {W} or {U}.
{2}{G}
Band Together
Instant
Up to two target creatures you control each deal damage equal to their power to another target creature.
{2}{R}
Bhaal's Invoker
Creature - Dragon Shaman
Scorching Ray -- {8}: Bhaal's Invoker deals 4 damage to each opponent.
4 /
2
{5}{B}{B}
Black Dragon
Creature - Dragon
Flying
Acid Breath -- When Black Dragon enters the battlefield, target creature an opponent controls gets -3/-3 until end of turn.
4 /
4
--
Black Dragon Gate
Land - Gate
Black Dragon Gate enters the battlefield tapped.
As Black Dragon Gate enters the battlefield, choose a color other than black.
{T}: Add {B} or one mana of the chosen color.
--
Blackcleave Cliffs
Land
Blackcleave Cliffs enters the battlefield tapped unless you control two or fewer other lands.
{T}: Add {B} or {R}.
{5}{U}{U}
Blue Dragon
Creature - Dragon
Flying
Lightning Breath -- When Blue Dragon enters the battlefield, until your next turn, target creature an opponent controls gets -3/-0, up to one other target creature gets -2/-0, and up to one other target creature gets -1/-0.
5 /
5
--
Boros Guildgate
Land - Gate
Boros Guildgate enters the battlefield tapped.
{T}: Add {R} or {W}.
{2}{R}
Breath Weapon
Instant
Breath Weapon deals 2 damage to each non-Dragon creature.
--
Canopy Vista
Land - Forest Plains
({T}: Add {G} or {W}.)
Canopy Vista enters the battlefield tapped unless you control two or more basic lands.
{3}{R}{R}{R}
Capricious Hellraiser
Creature - Phyrexian Dragon
This spell costs {3} less to cast if you have nine or more cards in your graveyard.
Flying
When Capricious Hellraiser enters the battlefield, exile three cards at random from your graveyard. Choose a noncreature, nonland card from among them and copy it. You may cast the copy without paying its mana cost.
4 /
4
{2}{R}
Carnelian Orb of Dragonkind
Artifact
{T}: Add {R}. If that mana is spent on a Dragon creature spell, it gains haste until end of turn.
--
Cave of the Frost Dragon
Land
If you control two or more other lands, Cave of the Frost Dragon enters the battlefield tapped.
{T}: Add {W}.
{4}{W}: Cave of the Frost Dragon becomes a 3/4 white Dragon creature with flying until end of turn. It's still a land.
--
Celestial Colonnade
Land
Celestial Colonnade enters the battlefield tapped.
{T}: Add {W} or {U}.
{3}{W}{U}: Until end of turn, Celestial Colonnade becomes a 4/4 white and blue Elemental creature with flying and vigilance. It's still a land.
--
Choked Estuary
Land
As Choked Estuary enters the battlefield, you may reveal an Island or Swamp card from your hand. If you don't, Choked Estuary enters the battlefield tapped.
{T}: Add {U} or {B}.
{4}{W}{U}{B}
Chromium, the Mutable
Legendary Creature - Elder Dragon
Flash
This spell can't be countered.
Flying
Discard a card: Until end of turn, Chromium, the Mutable becomes a Human with base power and toughness 1/1, loses all abilities, and gains hexproof. It can't be blocked this turn.
7 /
7
--
Cinder Barrens
Land
Cinder Barrens enters the battlefield tapped.
{T}: Add {B} or {R}.
{1}{R}
Circle of Flame
Enchantment
Whenever a creature without flying attacks you or a planeswalker you control, Circle of Flame deals 1 damage to that creature.
{2}{G}
Colossal Majesty
Enchantment
At the beginning of your upkeep, if you control a creature with power 4 or greater, draw a card.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
--
Copperline Gorge
Land
Copperline Gorge enters the battlefield tapped unless you control two or fewer other lands.
{T}: Add {R} or {G}.
--
Creeping Tar Pit
Land
Creeping Tar Pit enters the battlefield tapped.
{T}: Add {U} or {B}.
{1}{U}{B}: Creeping Tar Pit becomes a 3/2 blue and black Elemental creature until end of turn and can't be blocked this turn. It's still a land.
--
Cryptic Caves
Land
{T}: Add {C}.
{1}, {T}, Sacrifice Cryptic Caves: Draw a card. Activate only if you control five or more lands.
--
Crystal Grotto
Land
When Crystal Grotto enters the battlefield, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
--
Darkmoss Bridge
Artifact Land
Darkmoss Bridge enters the battlefield tapped.
Indestructible
{T}: Add {B} or {G}.
--
Darksteel Citadel
Artifact Land
Indestructible
{T}: Add {C}.
--
Darkwater Catacombs
Land
{1}, {T}: Add {U}{B}.
{4}{U}{U}{U}
Day of the Dragons
Enchantment
When Day of the Dragons enters the battlefield, exile all creatures you control. Then create that many 5/5 red Dragon creature tokens with flying.
When Day of the Dragons leaves the battlefield, sacrifice all Dragons you control. Then return the exiled cards to the battlefield under your control.
--
Desert of the Fervent
Land - Desert
Desert of the Fervent enters the battlefield tapped.
{T}: Add {R}.
Cycling {1}{R} ({1}{R}, Discard this card: Draw a card.)
--
Desert of the Glorified
Land - Desert
Desert of the Glorified enters the battlefield tapped.
{T}: Add {B}.
Cycling {1}{B} ({1}{B}, Discard this card: Draw a card.)
--
Desert of the True
Land - Desert
Desert of the True enters the battlefield tapped.
{T}: Add {W}.
Cycling {1}{W} ({1}{W}, Discard this card: Draw a card.)
--
Deserted Beach
Land
Deserted Beach enters the battlefield tapped unless you control two or more other lands.
{T}: Add {W} or {U}.
--
Desolate Lighthouse
Land
{T}: Add {C}.
{1}{U}{R}, {T}: Draw a card, then discard a card.
--
Dimir Aqueduct
Land
Dimir Aqueduct enters the battlefield tapped.
When Dimir Aqueduct enters the battlefield, return a land you control to its owner's hand.
{T}: Add {U}{B}.
--
Dimir Guildgate
Land - Gate
Dimir Guildgate enters the battlefield tapped.
{T}: Add {U} or {B}.
--
Dismal Backwater
Land
Dismal Backwater enters the battlefield tapped.
When Dismal Backwater enters the battlefield, you gain 1 life.
{T}: Add {U} or {B}.
{5}{U}
Draconic Lore
Instant
This spell costs {2} less to cast if you control a Dragon.
Draw three cards.
{2}{R}
Dragon Egg
Creature - Dragon Egg
Defender
When Dragon Egg dies, create a 2/2 red Dragon creature token with flying and "{R}: This creature gets +1/+0 until end of turn."
0 /
2
{R}
Dragon Mantle
Enchantment - Aura
Enchant creature
When Dragon Mantle enters the battlefield, draw a card.
Enchanted creature has "{R}: This creature gets +1/+0 until end of turn."
{1}{U}{U}
Dragon Turtle
Creature - Dragon Turtle
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.
3 /
5
{1}{R}
Dragon's Fire
Instant
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.
{1}{U}
Dragonborn Looter
Creature - Dragon Rogue
{1}, {T}: Draw a card, then discard a card.
1 /
2
{6}{G}{ // }{3}{G}
Dread Linnorm // Scale Deflection
Creature - Snake Dragon // Instant - Adventure
Dread Linnorm can't be blocked by creatures with power 3 or less.
Put two +1/+1 counters on target creature and untap it. It gains hexproof until end of turn. (Then exile this card. You may cast the creature later from exile.)
7 /
6
--
Dreamroot Cascade
Land
Dreamroot Cascade enters the battlefield tapped unless you control two or more other lands.
{T}: Add {G} or {U}.
--
Drossforge Bridge
Artifact Land
Drossforge Bridge enters the battlefield tapped.
Indestructible
{T}: Add {B} or {R}.
--
Emergence Zone
Land
{T}: Add {C}.
{1}, {T}, Sacrifice Emergence Zone: You may cast spells this turn as though they had flash.
--
Exotic Orchard
Land
{T}: Add one mana of any color that a land an opponent controls could produce.
{5}{R}{R}{ // }{1}{R}
Fang Dragon // Forktail Sweep
Creature - Dragon // Sorcery - Adventure
Flying
Forktail Sweep deals 1 damage to each creature you don't control. (Then exile this card. You may cast the creature later from exile.)
6 /
3
--
Fiery Islet
Land
{T}, Pay 1 life: Add {U} or {R}.
{1}, {T}, Sacrifice Fiery Islet: Draw a card.
--
Forsaken Sanctuary
Land
Forsaken Sanctuary enters the battlefield tapped.
{T}: Add {W} or {B}.
--
Foul Orchard
Land
Foul Orchard enters the battlefield tapped.
{T}: Add {B} or {G}.
--
Frostboil Snarl
Land
As Frostboil Snarl enters the battlefield, you may reveal an Island or Mountain card from your hand. If you don't, Frostboil Snarl enters the battlefield tapped.
{T}: Add {U} or {R}.
--
Furycalm Snarl
Land
As Furycalm Snarl enters the battlefield, you may reveal a Mountain or Plains card from your hand. If you don't, Furycalm Snarl enters the battlefield tapped.
{T}: Add {R} or {W}.
--
Game Trail
Land
As Game Trail enters the battlefield, you may reveal a Mountain or Forest card from your hand. If you don't, Game Trail enters the battlefield tapped.
{T}: Add {R} or {G}.
--
Gates of Istfell
Land
Gates of Istfell enters the battlefield tapped.
{T}: Add {W}.
{2}{W}{U}{U}, {T}, Sacrifice Gates of Istfell: You gain 2 life and draw two cards.
{4}{G}{G}
Green Dragon
Creature - Dragon
Flying
Poison Breath -- When Green Dragon enters the battlefield, until end of turn, whenever a creature an opponent controls is dealt damage, destroy it.
4 /
4
{4}{R}
Hellkite Whelp
Creature - Dragon
Flying
Whenever Hellkite Whelp attacks, it deals 1 damage to target creature defending player controls.
3 /
3
{3}{U}{R}
Hypersonic Dragon
Creature - Dragon
Flying, haste
You may cast sorcery spells as though they had flash. (You may cast them any time you could cast an instant.)
4 /
4
{2}{G}
Jade Orb of Dragonkind
Artifact
{T}: Add {G}. When you spend this mana to cast a Dragon creature spell, it enters the battlefield with an additional +1/+1 counter on it and gains hexproof until your next turn. (It can't be the target of spells or abilities your opponents control.)
{3}{U}{U}
Juvenile Mist Dragon
Creature - Dragon
Flying
Confounding Clouds -- When Juvenile Mist Dragon enters the battlefield, for each opponent, tap up to one target creature that player controls. Each of those creatures doesn't untap during its controller's next untap step.
4 /
3
{2}{U}
Lapis Orb of Dragonkind
Artifact
{T}: Add {U}. When you spend this mana to cast a Dragon creature spell, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)
{4}{R}{R}
Lathliss, Dragon Queen
Legendary Creature - Dragon
Flying
Whenever another nontoken Dragon enters the battlefield under your control, create a 5/5 red Dragon creature token with flying.
{1}{R}: Dragons you control get +1/+0 until end of turn.
6 /
6
{2}{R}
Livaan, Cultist of Tiamat
Legendary Creature - Dragon Shaman
Whenever you cast a noncreature spell, target creature gets +X/+0 until end of turn, where X is that spell's mana value.
Choose a Background (You can have a Background as a second commander.)
1 /
3
{3}{G}
Lurking Green Dragon
Creature - Dragon
Flying
Lurking Green Dragon can't attack unless defending player controls a creature with flying.
4 /
4
{1}{U}
Mordenkainen's Polymorph
Instant
Until end of turn, target creature becomes a Dragon with base power and toughness 4/4 and gains flying. (It loses all other creature types.)
{3}{U}
Nimbleclaw Adept
Creature - Dragon Wizard
Bigby's Hand -- {T}: Untap two other target permanents. Activate only as a sorcery and only once each turn.
2 /
3
{4}{B}{B}
Noxious Dragon
Creature - Dragon
Flying
When Noxious Dragon dies, you may destroy target creature with mana value 3 or less.
4 /
4
{4}{U}{U}
Oceanus Dragon
Creature - Dragon
Flying
When Oceanus Dragon enters the battlefield, tap target creature an opponent controls. Goad it. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)
Fire Breath -- When Red Dragon enters the battlefield, it deals 4 damage to each opponent.
4 /
4
{1}{R}
Roast
Sorcery
Roast deals 5 damage to target creature without flying.
{1}{G}
Scaled Nurturer
Creature - Dragon Druid
{T}: Add {G}. When you spend this mana to cast a Dragon creature spell, you gain 2 life.
0 /
2
{1}{R}
Scorching Dragonfire
Instant
Scorching Dragonfire deals 3 damage to target creature or planeswalker. If that creature or planeswalker would die this turn, exile it instead.
{4}{R}{R}
Shivan Dragon
Creature - Dragon
Flying (This creature can't be blocked except by creatures with flying or reach.)
{R}: Shivan Dragon gets +1/+0 until end of turn.
5 /
5
{2}{G}
Silvanus's Invoker
Creature - Dragon Druid
Conjure Elemental -- {8}: Untap target land you control. It becomes an 8/8 Elemental creature with trample and haste until end of turn. It's still a land.
3 /
2
{3}{R}{R}
Skarrgan Hellkite
Creature - Dragon
Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.)
Flying
{3}{R}: Skarrgan Hellkite deals 2 damage divided as you choose among one or two targets. Activate only if Skarrgan Hellkite has a +1/+1 counter on it.
4 /
4
{3}{R}{R}
Sparktongue Dragon
Creature - Dragon
Flying
When Sparktongue Dragon enters the battlefield, you may pay {2}{R}. When you do, it deals 3 damage to any target.
3 /
3
{6}
Steel Hellkite
Artifact Creature - Dragon
Flying
{2}: Steel Hellkite gets +1/+0 until end of turn.
{X}: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by Steel Hellkite this turn. Activate only once each turn.
5 /
5
{5}{U}{U}{ // }{1}{U}
Sword Coast Serpent // Capsizing Wave
Creature - Serpent Dragon // Instant - Adventure
Sword Coast Serpent can't be blocked as long as you've cast a noncreature spell this turn.
Return target creature to its owner's hand. (Then exile this card. You may cast the creature later from exile.)
6 /
6
--
Temple of the Dragon Queen
Land
As Temple of the Dragon Queen enters the battlefield, you may reveal a Dragon card from your hand. Temple of the Dragon Queen enters the battlefield tapped unless you revealed a Dragon card this way or you control a Dragon.
As Temple of the Dragon Queen enters the battlefield, choose a color.
{T}: Add one mana of the chosen color.
{2}{W}{U}{B}{R}{G}
Tiamat
Legendary Creature - Dragon God
Flying
When Tiamat enters the battlefield, if you cast it, search your library for up to five Dragon cards not named Tiamat that each have different names, reveal them, put them into your hand, then shuffle.
7 /
7
{1}{U}{R}
Wee Dragonauts
Creature - Faerie Wizard
Flying
Whenever you cast an instant or sorcery spell, Wee Dragonauts gets +2/+0 until end of turn.
1 /
3
{4}{W}{W}
White Dragon
Creature - Dragon
Flying
Cold Breath -- When White Dragon enters the battlefield, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.
4 /
4
{4}{U}{ // }{1}{U}
Young Blue Dragon // Sand Augury
Creature - Dragon // Sorcery - Adventure
Flying
Scry 1, then draw a card. (Then exile this card. You may cast the creature later from exile.)
3 /
3
{3}{R}{ // }{1}{R}
Young Red Dragon // Bathe in Gold
Creature - Dragon // Instant - Adventure
Flying
Young Red Dragon can't block.
Create a Treasure token. (Then exile this card. You may cast the creature later from exile.)