Storm the Vault

Legendary Enchantment

Whenever one or more creatures you control deal combat damage to a player, create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")
At the beginning of your end step, if you control five or more artifacts, transform Storm the Vault.

Vault of Catlacan

Legendary Land

(Transforms from Storm the Vault.)
: Add one mana of any color.
: Add for each artifact you control.