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

{T}: Add one mana of any color in your commander's color identity. Sacrifice this artifact: Draw a card.

{T}: Add {R}. As this artifact enters, you may have it become a copy of any creature on the battlefield until end of turn, except it has haste.

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.

{T}: Add {G}. When you spend this mana to cast a Dragon creature spell, it enters 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.)

The "legend rule" doesn't apply to permanents you control. Each legendary creature you control gets +1/+1. Each nontoken creature you control gets +1/+1 for each other creature you control with the same name as that creature.

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

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

Changeling (This card is every creature type.) As this creature enters, choose a creature type. Whenever another creature you control of the chosen type enters, put a +1/+1 counter on this creature.

Flash Flying When this creature enters, it deals 5 damage divided as you choose among any number of targets.

Whenever another nontoken creature enters, you may pay {1}{G}. If you do, that creature's controller creates a token that's a copy of that creature.

You may have this creature enter as a copy of any creature on the battlefield.

Flying When this creature enters, it deals 5 damage to target opponent unless that player sacrifices a creature of their choice.

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

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

Flying Whenever Drakuseth attacks, it deals 4 damage to any target and 3 damage to each of up to two other targets.

This spell costs {X} less to cast, where X is the total mana value of Dragons you control. Flying, trample {2}{G}, Sacrifice a land: Return this card from your graveyard to your hand.

Flying When Galazeth Prismari enters, create a Treasure token. Artifacts you control have "{T}: Add one mana of any color. Spend this mana only to cast an instant or sorcery spell."

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.)

Each spell you cast that's red or green costs {1} less to cast.

Flying, haste Whenever this creature attacks, you may pay {5}{R}{R}. If you do, untap all attacking creatures and after this phase, there is an additional combat phase.

Flying, trample Whenever Hellkite Tyrant deals combat damage to a player, gain control of all artifacts that player controls. At the beginning of your upkeep, if you control twenty or more artifacts, you win the game.

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

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.

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.

Bigby's Hand — {T}: Untap two other target permanents. Activate only as a sorcery and only once each turn.

Flying Whenever you draw a card, Niv-Mizzet deals 1 damage to any target. {T}: Draw a card.

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

{T}: Add {G}, {U}, or {R}. Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creature is turned face up, add {G}{U}{R}.

Flying Fire Breath — When this creature enters, it deals 4 damage to each opponent.

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.

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 When this creature enters, you become the monarch. At the beginning of your upkeep, if you're the monarch, create a 5/5 red Dragon creature token with flying.

Trample Whenever Thrakkus attacks, double the power of each Dragon you control until end of turn.

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

Creatures with flying can't block creatures you control.

Creatures you control have haste. Sacrifice this enchantment: Target creature gets +2/+2 until end of turn.

Whenever a nontoken creature you control enters, you may pay {R}. If you do, create a token that's a copy of that creature. That token gains haste. Exile it at the beginning of the next end step.

When this enchantment enters, if you control a creature with power 4 or greater, draw a card. Creatures you control have trample. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.) Whenever a creature you control with power 4 or greater enters, draw a card.

As this enchantment enters, choose a creature type. Whenever a creature you control of the chosen type enters or attacks, draw a card.

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.)

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

Exile up to two target creatures you control, then return those cards to the battlefield under their owner's control.

Copy target creature spell you control, except it isn't legendary if the spell is legendary. (A copy of a creature spell becomes a token.)

Draw a card. You may put a land card from your hand onto the battlefield.

Permanents you control gain hexproof and indestructible until end of turn.

Choose a creature type. Reveal cards from the top of your library until you reveal X creature cards of the chosen type, where X is the number of creatures you control of that type. Put those cards onto the battlefield, then shuffle the rest of the revealed cards into your library.

Counter target noncreature spell.

Choose one — • Destroy target artifact. • Destroy target enchantment. • Exile target card from a graveyard.

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

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

({T}: Add {G}.)

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

As this land enters, you may reveal an Island or Mountain card from your hand. If you don't, this land enters tapped. {T}: Add {U} or {R}.

{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.

({T}: Add {U}.)

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.

({T}: Add {R}.)

As this land enters, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type or activate an ability of a creature source of the chosen type.

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

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.

This land enters tapped. As it enters, choose a color other than red. {T}: Add {R} or one mana of the chosen color.

This land enters tapped. As it enters, choose a color other than green. {T}: Add {G} or one mana of the chosen color.

Creatures you control get +1/+0. +1: Add {R} or {G}. Creature spells you cast this turn can't be countered. −2: Target creature you control fights target creature you don't control.

Whenever a creature you control with power 4 or greater enters, draw a card. −1: Untap target permanent.

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.

Draw cards equal to the greatest power among creatures you control. You may cast a spell with mana value 5 or less from your hand without paying its mana cost.