Commander creatures you own have "The first Dragon spell you cast each turn costs {2} less to cast."

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

{T}: Add {R}. If that mana is spent on a Dragon creature spell, it gains haste until end of turn.

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

Dragon spells you cast cost {2} less to cast.

Flying Whenever Ganax or another Dragon you control enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Choose a Background (You can have a Background as a second commander.)

Search your library for up to X basic land cards, where X is the number of tapped creatures you control, put those cards onto the battlefield tapped, then shuffle.

{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 and the rest on top in any order.)

Menace Pack tactics — Whenever this creature attacks, if you attacked with creatures with total power 6 or greater this combat, you may put a Dragon creature card from your hand onto the battlefield tapped and attacking.

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

Flying When this creature enters, create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

Sacrifice this creature: Add {R}{R}.

Flying Whenever this creature attacks, add {R}{R}{R}{G}{G}{G}. Until end of turn, you don't lose this mana as steps and phases end.

{T}: Add {G}. When you spend this mana to cast a Dragon creature spell, you gain 2 life.

{T}: Add {C}{C}.

Exile target creature you control, then return that card to the battlefield under its owner's control. Draw a card.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Enchant creature When this Aura enters, draw a card. Enchanted creature gets +2/+2 and has flying.

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

Flying Whenever Intet deals combat damage to a player, you may pay {2}{U}. If you do, exile the top card of your library face down. You may look at that card for as long as it remains exiled. You may play that card without paying its mana cost for as long as Intet remains on the battlefield.

Flying Iymrith has ward {4} as long as it's untapped. Whenever Iymrith deals combat damage to a player, draw a card. Then if you have fewer than three cards in hand, draw cards equal to the difference.

You may look at the top card of your library any time. You may cast Dragon spells from the top of your library.

Counter target spell. If that spell targets a commander you control, instead counter that spell, scry 2, then draw a card.

Breath Weapon deals 2 damage to each non-Dragon creature.

Earth Tremor deals damage to target creature or planeswalker equal to the number of lands you control.

Return all nonland permanents to their owners' hands. If you return four or more nontoken permanents you control this way, you may put a permanent card from your hand onto the battlefield.

Lightning Bolt deals 3 damage to any target.

Flying Whenever you cast an Adventure or Dragon spell, Lozhan deals damage equal to that spell's mana value to any target that isn't a commander.

Magmaquake deals X damage to each creature without flying and each planeswalker.

Counter target spell. Cycling {2} ({2}, Discard this card: Draw a card.)

Flying Whenever this creature or another Dragon you control enters, it deals X damage to any target, where X is the number of Dragons you control. {R}: This creature gets +1/+0 until end of turn.

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

Creatures you control get +3/+3 and gain trample until end of turn. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)

Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.) If one or more tokens would be created under your control, twice that many of those tokens are created instead.

Create X tokens that are copies of target token you control. Then tokens you control gain indestructible until your next turn. You gain 1 life for each token you control.

Whenever you cast an instant or sorcery spell, copy it. You may choose new targets for the copy. This ability triggers only once each turn. +2: Add two mana in any combination of colors. +1: Exile the top five cards of your library. Until the end of your next turn, you may cast an instant or sorcery spell from among those exiled cards. −X: Chandra deals X damage to each of up to two targets.

Kicker {5} (You may pay an additional {5} as you cast this spell.) Create a token that's a copy of target creature. If this spell was kicked, create five of those tokens instead.

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

({T}: Add {G}.)

({T}: Add {U}.)

({T}: Add {R}.)

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.

+2: Sarkhan deals 1 damage to each opponent and each creature your opponents control. −3: Sarkhan deals 4 damage to target player or planeswalker. −9: Search your library for any number of Dragon creature cards, put them onto the battlefield, then shuffle.

Enchant creature Enchanted creature has haste. {R}: Enchanted creature gets +1/+0 until end of turn. When a creature with mana value 6 or greater enters, you may return this card from your graveyard to the battlefield attached to that creature.

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.)

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.)

At the beginning of combat on your turn, creatures you control with toughness 4 or greater get +2/+2 and gain vigilance until end of turn.

Whenever Skanos Dragonheart attacks, it gets +X/+X until end of turn, where X is the greatest power among other Dragons you control and Dragon cards in your graveyard. Choose a Background (You can have a Background as a second commander.)