Whenever one or more creatures you control deal combat damage to a player, create a colorless Treasure artifact token with", Sacrifice this artifact: Add one mana of any color to your mana pool."

At the beginning of you end step, if you control five or more artifacts, transform Storm the Vault.
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(Transforms from Storm the Vault.)
: Add one mana of any color to your mana pool.
: Add to your mana pool for each artifact you control.