Success in creating the blueprints earns 10,518 base Invention experience, or 52,591 experience at perfect optimization. The Oldak coil requires cannonballs as fuel, consuming one every time it attacks (even if it hits multiple targets), and it has a cannonball capacity of 30. When active, any enemy that is in range will be repeatedly attacked by bolts of lightning, and it can hit up to three enemies at once. It benefits from the same perks as the dwarf multicannon if unlocked, increasing the cannonball limit to 60 or 90 and allowing it to restock automatically if the player is in range.