Gear Engine

Whenever you cast an artifact spell, untap target permanent.
{5}, {t}: Draw a card.
Machinery is littered all around Madiche, its nearly impossible to not come in contact with some. Many of
them are just a mess of assorted gears, but some that
we've recovered are quite useful. We are debating
taking some back to the ship... but I'm not so sure.
—Dr. Clearrunner.