Mekhane, The Broken God

Exile an artifact you control: Put X +1/+1 counters on Mekhane, The Broken God, where X is the converted mana cost of that artifact
Mekhane, The Broken God has all activated, triggered, and static abilities of artifacts exiled with it
When Mekhane, The Broken God is put into a graveyard from the battlefield, return all artifacts exiled with Mekhane, The Broken God
to your hand