Hard Light Sword

The  is a two-handed melee/ranged weapon. The secondary ability, Hard Light Gun, inflicts marks onto enemies, allowing the primary ability to deal critical damage to that enemy, which increases the more marks are applied.

Location
Drops in a loreroom with a monolith that can randomly be found in the Prisoners' Quarters. Examining the monolith will drop the. Picking it up will unlock it permanently.
 * "I feel uneasy when I'm next to this... monolith."
 * "I should leave fast!"

Trivia

 * This weapon and its mechanics, are a reference to the game Hyper Light Drifter.
 * Its flavor text comes from the film Star Wars: Episode IV — A New Hope.
 * The monolith in Dead Cells is nearly Identical to the one at the top of The Tower, a switch-exclusive area in Hyper Light Drifter.