Maravos Ironspine

Hexproof (Maravos can't be the target of spells or abilities your opponents control.)

When Maravos Ironspine, Necrotomiton enters the battlefield or an artifact you control is put into the graveyard from the battlefield, you may exile target artifact card from your graveyard. If you do, create a X/X colorless artifact creature token named "Mechanical Body" with indestructible. where X is the exiled artifact's converted mana cost.