Archimedes' Lever is the sword wielded by the original Storm King. Forged by master-Spark Van Rijn, along with being powerfully electrified in some fashion, it was "bound to its owner's soul", allowing him to sense and activate it from (at least) a fair distance away. According to Violetta, the blade was also sharp enough to "cut the day out of the night", whatever that means. The Jägermonsters refer to it as Slasher.