Myrithe, Will of the Forge

Creatures you control have metalize {1} and "As long as this creature is an artifact, it's an Equipment in addition to it's other types, it has equip {2} and 'Equipped creature has all abilities of this artifact.'"
{3}{w}{r}: Create an X/X colorless Construct artifact creature token. Where X is equal to the number of artifacts you own in exile.