Acolyte of Bahamut

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

Aura Thief

Flying
When Aura Thief dies, you gain control of all enchantments. (You don't get to move Auras.)

All permanents are enchantments in addition to their other types.

{T}: Add {B}. Elves of Deep Shadow deals 1 damage to you.

Each player chooses a creature type. Each player returns all creature cards of a type chosen this way from their graveyard to the battlefield.