Tarkir: Dragonstorm Commander

Legendary Creature — Spirit Dragon

Flying, trample
Whenever Ureni enters or attacks, look at the top eight cards of your library. You may put a Dragon creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

Ureni of the Unwritten

Artifact

{T}: Add one mana of any color in your commander's color identity.

Arcane Signet

Legendary Creature — Dragon

Flying, trample
Whenever a Dragon you control attacks, it gains double strike until end of turn.

Atarka, World Render

Treasure

Legendary Creature — Dragon Spirit

Flying, trample
When Atsushi dies, choose one —
• Exile the top two cards of your library. Until the end of your next turn, you may play those cards.
• Create three Treasure tokens.

Atsushi, the Blazing Sky

Beast

Instant

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

Beast Within

Sorcery

Draw a card for each creature you control with power 4 or greater. Then creatures you control get +X/+X until end of turn, where X is the number of cards in your hand.

Become the Avalanche

This spell costs {1} less to cast for each creature on the battlefield.
Blasphemous Act deals 13 damage to each creature.

Blasphemous Act

Land

{T}: Add {C}.
{T}, Sacrifice this land: Search your library for a basic Forest, Island, or Mountain card, put it onto the battlefield tapped, then shuffle.
Cycling {G}{U}{R} ({G}{U}{R}, Discard this card: Draw a card.)

Bountiful Landscape

Legendary Creature — Human Warrior

Whenever you cast a creature spell, put a +1/+1 counter on Eshki. If that spell's power is 4 or greater, draw a card. If that spell's power is 6 or greater, Eshki deals damage equal to Eshki's power to each opponent.

Eshki, Temur's Roar

Creature — Dragon

Flying
Whenever one or more Dragons you control deal combat damage to a player, you may put a permanent card with mana value less than or equal to that damage from your hand onto the battlefield.

Broodcaller Scourge

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Chaos Warp

Land — Mountain Forest

({T}: Add {R} or {G}.)
This land enters tapped unless you control two or more basic lands.

Cinder Glade

Tower Winder

Command Tower

Flying
You may have this creature enter as a copy of a creature you control with power 4 or greater, except it's a Dragon in addition to its other types and it has flying.

Deceptive Frostkite

Enchantment

Whenever a creature you control with flying enters, it gains haste until end of turn.
Whenever a Dragon you control enters, it deals X damage to any target, where X is the number of Dragons you control.

Dragon Tempest

Whenever a Dragon you control enters, put a gold counter on this artifact.
{T}, Remove a gold counter from this artifact: Draw a card.
{T}: Add one mana of any color.

Dragon's Hoard

Legendary Creature — Elder Dragon

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

Dragonlord Atarka

Whenever a creature you control with power 3 or greater enters, draw a card.

Elemental Bond

Tarkir: Dragonstorm

When this enchantment enters, search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.
When a Dragon you control enters, return this enchantment to its owner's hand.

Encroaching Dragonstorm

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Evolving Wilds

{T}: Add one mana of any color that a land an opponent controls could produce.

Exotic Orchard

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

Farseek

Fellwar Stone

{T}: Add {C}.
{G/U}, {T}: Add {G}{G}, {G}{U}, or {U}{U}.

Flooded Grove

Basic Land — Forest

Forest

This land enters tapped.
{T}: Add {G}, {U}, or {R}.

Frontier Bivouac

As this enchantment enters, choose Khans or Dragons.
• Khans — At the beginning of each of your main phases, add {G}{G}.
• Dragons — Whenever a creature you control with flying enters, you may have it fight target creature you don't control.

Frontier Siege

Flying, haste
You may exert this creature as it attacks. When you do, it deals 4 damage to target non-Dragon creature an opponent controls. (An exerted creature won't untap during your next untap step.)

Glorybringer

Flying
Whenever you cast a spell, return up to one target nonland permanent an opponent controls with mana value less than or equal to that spell's mana value to its owner's hand.

Hammerhead Tyrant

{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a Dragon creature spell.
{2}, {T}, Sacrifice this land: Return target Dragon creature card or Ugin planeswalker card from your graveyard to your hand.

Haven of the Spirit Dragon

Flying
When this creature enters, you may put a commander you own from the command zone onto the battlefield. It gains haste. Return it to the command zone at the beginning of the next end step.

Hellkite Courser

This land enters tapped unless you control a Forest or an Island.
{T}: Add {G} or {U}.

Hinterland Harbor

Basic Land — Island

Island

{T}: Add {C}.
{T}: Add {R} or {G}. This land deals 1 damage to you.

Karplusan Forest

Flying
When Keiga dies, gain control of target creature.

Keiga, the Tide Star

{T}: Add {C}.
{X}{R}{G}, {T}: Target creature gets +X/+0 and gains trample until end of turn.

Kessig Wolf Run

Sorcery — Arcane

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Kodama's Reach

Dragon

Flying
Whenever another nontoken Dragon you control enters, create a 5/5 red Dragon creature token with flying.
{1}{R}: Dragons you control get +1/+0 until end of turn.

Lathliss, Dragon Queen

Flying
You don't lose unspent red mana as steps and phases end.
When this creature dies, you may pay any amount of {R}. When you do, it deals that much damage to any target.

Leyline Tyrant

Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.
Cycling {2} ({2}, Discard this card: Draw a card.)

Migration Path

Mossfire Valley

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)
This land enters tapped.
{T}: Add {G}.
{G}, {T}: You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.

Mosswort Bridge

Basic Land — Mountain

Mountain

Dragon Egg

Flying
Landfall — Whenever a land you control enters, create a 0/2 red Dragon Egg creature token with defender and "When this token dies, create a 2/2 red Dragon creature token with flying and '{R}: This token gets +1/+0 until end of turn.'"

Nesting Dragon

Creature — Goblin Shaman

Dragon spells you cast cost {1} less to cast.

Dragonlord's Servant

Creature — Human Shaman

At the beginning of your upkeep, if you control six or more lands, create a 5/5 red Dragon creature token with flying.

Dragonmaster Outcast

Flying
{2}{R}: This creature deals 1 damage to each creature without flying.
{2}{G}: This creature deals 1 damage to each other creature with flying.

Harbinger of the Hunt

Flying
When this creature enters, choose target Human or artifact an opponent controls. For as long as this creature remains on the battlefield, gain control of that permanent, it loses all abilities, and it can't attack or block.

Opportunistic Dragon

Legendary Creature — Kobold Shaman

Dragon spells you cast cost {1} less to cast.
Whenever Nogi attacks, if you control three or more Dragons, until end of turn, Nogi becomes a Dragon with base power and toughness 5/5 and gains flying.

Nogi, Draco-Zealot

This spell costs {2} less to cast if you control a Dragon.
Draw three cards.

Draconic Lore

When this enchantment enters, exile cards from the top of your library until you exile a nonland card. You may cast it without paying its mana cost if that spell's mana value is 8 or less. If you don't, put that card into your hand.
When a Dragon you control enters, return this enchantment to its owner's hand.

Breaching Dragonstorm

Flying
Whenever one or more Dragons you control deal combat damage to an opponent, choose one that hasn't been chosen this turn —
• Destroy target artifact that opponent controls.
• This creature deals 4 damage to each other opponent.
• Exile the top card of your library. You may play it this turn.

Parapet Thrasher

This land enters 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.)

Path of Ancestry

Exile the top X cards of your library. You may play them until the end of your next turn.
Harmonize {X}{R}{R} (You may cast this card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by an amount of generic mana equal to its power. Then exile this spell.)

Zenith Festival

Instant — Omen

Flying
When this creature enters, return up to two other target nonland permanents to their owners' hands.

Coil and Catch

Marang River Regent

Manifest

Exile target creature. Its controller manifests the top card of their library. (That player puts the top card of their library onto the battlefield face down as a 2/2 creature. If it's a creature card, it can be turned face up any time for its mana cost.)

Reality Shift

Copy

As this enchantment enters, choose a creature type.
Whenever you cast a spell of the chosen type, copy that spell. (A copy of a permanent spell becomes a token.)

Reflections of Littjara

This land enters tapped unless you control two or more other lands.
{T}: Add {R} or {G}.

Rockfall Vale

This land enters tapped unless you control a Mountain or a Forest.
{T}: Add {R} or {G}.

Rootbound Crag

Legendary Creature — Human Shaman

Dragon spells you cast cost {1} less to cast.
Whenever a Dragon you control enters, you may have Sarkhan become a copy of it until end of turn, except its name is Sarkhan, Soul Aflame and it's legendary in addition to its other types.

Sarkhan, Soul Aflame

Flying
Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)
Whenever this creature attacks for the first time each turn, if it's attacking the player with the most life or tied for most life, untap all attacking creatures. After this phase, there is an additional combat phase.

Scourge of the Throne

Council's dilemma — Starting with you, each player votes for wild or free. Reveal cards from the top of your library until you reveal a creature card for each wild vote. Put those creature cards onto the battlefield, then shuffle the rest into your library. You may put a permanent card from your hand onto the battlefield for each free vote.

Selvala's Stampede

({T}: Add {R} or {G}.)
This land enters tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)

Sheltered Thicket

{T}: Add {C}.
{T}: Add {U} or {R}. This land deals 1 damage to you.

Shivan Reef

Sol Ring

Artifact Creature — Dragon

Flying
{2}: This creature gets +1/+0 until end of turn.
{X}: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by this creature this turn. Activate only once each turn.

Steel Hellkite

Flying, haste, protection from white
{5}{R}{R}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)
When this creature becomes monstrous, it deals damage to each opponent equal to the number of cards in that player's hand.

Stormbreath Dragon

Sorcery — Omen

Discard a card. If you do, draw two cards. (Then shuffle this card into its owner's library.)

Flush Out

Flying, haste
{1}{R}: This creature gets +1/+0 until end of turn.

Stormshriek Feral

This land enters tapped unless you control an Island or a Mountain.
{T}: Add {U} or {R}.

Sulfur Falls

{T}: Add {C}.
{T}: Add {U} or {R}. This artifact deals 1 damage to you.

Talisman of Creativity

{T}: Add {C}.
{T}: Add {R} or {G}. This artifact deals 1 damage to you.

Talisman of Impulse

This land enters tapped.
When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
{T}: Add {R} or {G}.

Temple of Abandon

This land enters tapped.
When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
{T}: Add {G} or {U}.

Temple of Mystery

As this land enters, you may reveal a Dragon card from your hand. This land enters tapped unless you revealed a Dragon card this way or you control a Dragon.
As this land enters, choose a color.
{T}: Add one mana of the chosen color.

Temple of the Dragon Queen

Creatures you control have haste.
Whenever a creature you control with power 4 or greater enters, you may draw a card.

Temur Ascendancy

Flying, haste
At the beginning of combat on your turn, choose an opponent at random that this creature didn't attack during your last combat. This creature attacks that player this combat if able. If you can't choose an opponent this way, tap this creature.

Territorial Hellkite

Flying
Whenever a Dragon you control becomes the target of a spell or ability an opponent controls, this creature deals 3 damage to that player.

Thunderbreak Regent

Flying
You may look at the top card of your library any time.
You may cast creature spells with power 4 or greater from the top of your library. If you cast a creature spell this way, it gains haste until end of turn.

Thundermane Dragon

Creature — Spirit Dragon

Flying
Whenever this creature enters or attacks, goad target creature. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)
Whenever a goaded creature attacks, it deals 1 damage to its controller.

Vengeful Ancestor

Put three +1/+1 counters on target creature you control. (Then shuffle this card into its owner's library.)

Dynamic Soar

Flash
Flying
You may cast sorcery spells and Dragon spells as though they had flash.

Whirlwing Stormbrood

Choose one. If you control a commander as you cast this spell, you may choose both instead.
• Create a token that's a copy of target permanent, except it's a 4/4 Dragon creature with flying in addition to its other types.
• Target player draws cards equal to the greatest mana value among permanents you control.

Will of the Temur

{T}: Add {C}.
{T}: Add {G} or {U}. This land deals 1 damage to you.

Yavimaya Coast

Spit Flame deals 4 damage to target creature.
Whenever a Dragon you control enters, you may pay {R}. If you do, return this card from your graveyard to your hand.

Spit Flame

Frog Lizard

Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token.

Rapid Hybridization

Flying
Gadrak can't attack unless you control four or more artifacts.
At the beginning of your end step, create a Treasure token for each nontoken creature that died this turn. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Gadrak, the Crown-Scourge

Here is the upgraded precon...I'm using this to track the changes.
I tried to not remove dragons without replacing them with better dragons. 

Type	%	#
Blue	18%	17
Red	53%	51
Green	30%	29
*Inner Circle

Type	%	#
White	8%	9
Blue	19%	20
Black	8%	9
Red	26%	28
Green	29%	31
Colorless	10%	11
*Outer Circle

Deck History