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.")

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.)

Flying, haste Whenever this creature attacks or becomes the target of a spell, create a Treasure token. Treasures you control have "{T}, Sacrifice this artifact: Add two mana of any one color."

Spells cost {1} less to cast.

When this creature enters or dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Whenever a creature an opponent controls dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") At the beginning of your upkeep, if you control ten or more Treasures, you win the game.

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

Whenever an opponent draws a card, that player may pay {2}. If the player doesn't, you create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

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

When this creature enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Whenever you attack, you may sacrifice one or more Treasures. When you do, up to that many target creatures gain double strike until end of turn.

Changeling (This card is every creature type.) As this creature enters, choose a creature type. You may look at the top card of your library any time. You may cast creature spells of the chosen type from the top of your library.

When this enchantment enters, draw two cards, then discard a card. When a Dragon you control enters, return this enchantment to its owner's hand.

Flying As long as you control four or more artifacts, this creature has hexproof. (It can't be the target of spells or abilities your opponents control.) Tap two untapped artifacts you control: Draw a card.

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

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

Undaunted (This spell costs {1} less to cast for each opponent.) Return all nonland permanents to their owners' hands.

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.

Changeling (This card is every creature type.) When this creature enters, you may exile a creature card from your graveyard. If you do, exile target artifact or enchantment an opponent controls.

Flying, hexproof Whenever a Dragon you control attacks, creatures defending player controls get -1/-1 until end of turn.

Search your library for a card, put that card into your hand, then shuffle.

You may cast Dragon spells and artifact spells as though they had flash. Choose a Background (You can have a Background as a second commander.)