Ijaat, the Iron Father

Whenever a Tech or Artifact card enters the
field, put an Ingot counter on this card.
Forge Tech {1}{w}
Force Artifact {2}{w}
Mantle {3}{b} ({3}{b}, remove four Ingot counters from
this card and exile it. Return this card transformed to
the field under its owner's control. Mantle only on
your turn.)