Hephaestus, Metalworker

Indestructible, Vigilance
{t}; Destroy target artifact.
{1}, {t}: Target creature becomes an artifact in
addition to its other types.
{3}, {t}: Gain control of target artifact.
{6}, {t}: Target permanent becomes an artifact in addition to its other types.
Hephaestus locked himself away, intent only on
perfection, and left the world's machines to break and collapse.