Storm the Vault

“Whenever one or more creatures you control deal combat damage to a player, create a colorless Treasure artifact token with "T, Sacrifice this artifact: Add one mana of any color to your mana pool." <br> At the beginning of your end step, if you control five or more artifacts, transform Storm the Vault. <br>//<br> <strong>Vault of Catlacan</strong> <br> <em>(Transforms from Storm the Vault.)</em> <br> T: Add one mana of any color to your mana pool. <br> T: Add U to your mana pool for each artifact you control.”