Ancient Copper Dragon

Flying
Whenever this creature deals combat damage to a player, roll a d20. You create a number of Treasure tokens equal to the result.

Don't Have

Reckless Fireweaver

Whenever an artifact you control enters, this creature deals 1 damage to each opponent.

Dolmen Gate

Prevent all combat damage that would be dealt to attacking creatures you control.

Professional Face-Breaker

Menace
Whenever one or more creatures you control deal combat damage to a player, create a Treasure token.
Sacrifice a Treasure: Exile the top card of your library. You may play that card this turn.

Jaheira, Friend of the Forest

Tokens you control have "{T}: Add {G}."
Choose a Background (You can have a Background as a second commander.)

Roxanne, Starfall Savant

Whenever Roxanne enters or attacks, create a tapped colorless artifact token named Meteorite with "When this token enters, it deals 2 damage to any target" and "{T}: Add one mana of any color."
Whenever you tap an artifact token for mana, add one mana of any type that artifact token produced.

Old Gnawbone

Flying
Whenever a creature you control deals combat damage to a player, create that many Treasure tokens.

Goblin Anarchomancer

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

Ingenious Artillerist

Whenever one or more artifacts you control enter, this creature deals that much damage to each opponent.