Whenever a Dragon you control attacks, it gains double strike until end of turn.
6 /
4
{3}
Commander's Sphere
Artifact
{T}: Add one mana of any color in your commander's color identity.
Sacrifice Commander's Sphere: Draw a card.
{U}{U}
Counterspell
Instant
Counter target spell.
{3}{R}
Crucible of Fire
Enchantment
Dragon creatures you control get +3/+3.
{3}{B}{B}
Crux of Fate
Sorcery
Choose one --
• Destroy all Dragon creatures.
• Destroy all non-Dragon creatures.
{1}{R}
Dragon Tempest
Enchantment
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.
{1}{R}
Dragonlord's Servant
Creature - Goblin Shaman
Dragon spells you cast cost {1} less to cast.
1 /
3
--
Evolving Wilds
Land
{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{4}{R}{R}
Flameblast Dragon
Creature - Dragon
Flying
Whenever Flameblast Dragon attacks, you may pay {X}{R}. If you do, Flameblast Dragon deals X damage to any target.
5 /
5
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Gruul Guildgate
Land - Gate
Gruul Guildgate enters the battlefield tapped.
{T}: Add {R} or {G}.
--
Haven of the Spirit Dragon
Land
{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a Dragon creature spell.
{2}, {T}, Sacrifice Haven of the Spirit Dragon: Return target Dragon creature card or Ugin planeswalker card from your graveyard to your hand.
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Izzet Guildgate
Land - Gate
Izzet Guildgate enters the battlefield tapped.
{T}: Add {U} or {R}.
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
{1}{U}{B}{R}
Nicol Bolas, the Ravager
Legendary Creature - Elder Dragon
Flying
When Nicol Bolas, the Ravager enters the battlefield, each opponent discards a card.
{4}{U}{B}{R}: Exile Nicol Bolas, the Ravager, then return him to the battlefield transformed under his owner's control. Activate only as a sorcery.
4 /
4
--
Nicol Bolas, the Arisen
Legendary Planeswalker - Bolas
+2: Draw two cards.
-3: Nicol Bolas, the Arisen deals 10 damage to target creature or planeswalker.
-4: Put target creature or planeswalker card from a graveyard onto the battlefield under your control.
-12: Exile all but the bottom card of target player's library.
4 /
4
{U}{U}{U}{R}{R}{R}
Niv-Mizzet, Parun
Legendary Creature - Dragon Wizard
This spell can't be countered.
Flying
Whenever you draw a card, Niv-Mizzet, Parun deals 1 damage to any target.
Whenever a player casts an instant or sorcery spell, you draw a card.
5 /
5
--
Path of Ancestry
Land
Path of Ancestry enters the battlefield tapped.
{T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
{1}{G}
Rampant Growth
Sorcery
Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
{4}{R}
Rapacious Dragon
Creature - Dragon
Flying
When Rapacious Dragon enters the battlefield, create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")
3 /
3
{4}{G}
Return of the Wildspeaker
Instant
Choose one --
• Draw cards equal to the greatest power among non-Human creatures you control.
• Non-Human creatures you control get +3/+3 until end of turn.
{3}{R}{R}
Sarkhan the Masterless
Legendary Planeswalker - Sarkhan
Whenever a creature attacks you or a planeswalker you control, each Dragon you control deals 1 damage to that creature.
+1: Until end of turn, each planeswalker you control becomes a 4/4 red Dragon creature and gains flying.
-3: Create a 4/4 red Dragon creature token with flying.
L:
5
{2}{R}
Sarkhan's Triumph
Instant
Search your library for a Dragon creature card, reveal it, put it into your hand, then shuffle.
{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
{W}{U}{B}{R}{G}
Scion of the Ur-Dragon
Legendary Creature - Dragon Avatar
Flying
{2}: Search your library for a Dragon permanent card and put it into your graveyard. If you do, Scion of the Ur-Dragon becomes a copy of that card until end of turn. Then shuffle.
4 /
4
{2}{R}{R}{R}
Scourge of Valkas
Creature - Dragon
Flying
Whenever Scourge of Valkas or another Dragon enters the battlefield under your control, it deals X damage to any target, where X is the number of Dragons you control.
{R}: Scourge of Valkas gets +1/+0 until end of turn.
4 /
4
{4}{U}{B}
Silumgar, the Drifting Death
Legendary Creature - Dragon
Flying, hexproof
Whenever a Dragon you control attacks, creatures defending player controls get -1/-1 until end of turn.
3 /
7
{2}{G}
Spelunking
Enchantment
When Spelunking enters the battlefield, draw a card, then you may put a land card from your hand onto the battlefield. If you put a Cave onto the battlefield this way, you gain 4 life.
Lands you control enter the battlefield untapped.
{U}
Stubborn Denial
Instant
Counter target noncreature spell unless its controller pays {1}.
Ferocious -- If you control a creature with power 4 or greater, counter that spell instead.
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Temple of Enlightenment
Land
Temple of Enlightenment enters the battlefield tapped.
When Temple of Enlightenment enters the battlefield, scry 1.
{T}: Add {W} or {U}.
--
Temple of Mystery
Land
Temple of Mystery enters the battlefield tapped.
When Temple of Mystery enters the battlefield, scry 1.
{T}: Add {G} or {U}.
--
Temple of Triumph
Land
Temple of Triumph enters the battlefield tapped.
When Temple of Triumph enters the battlefield, scry 1.
{T}: Add {R} or {W}.
--
Terramorphic Expanse
Land
{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{4}{W}{U}{B}{R}{G}
The Ur-Dragon
Legendary Creature - Dragon Avatar
Eminence -- As long as The Ur-Dragon is in the command zone or on the battlefield, other Dragon spells you cast cost {1} less to cast.
Flying
Whenever one or more Dragons you control attack, draw that many cards, then you may put a permanent card from your hand onto the battlefield.
10 /
10
{3}{R}{R}
Wrathful Red Dragon
Creature - Dragon
Flying
Whenever a Dragon you control is dealt damage, it deals that much damage to any target that isn't a Dragon.