The “greatest exospine stellar blade” is a hypothetical weapon that has but to be created. Nevertheless, primarily based on the person phrases, we will infer that it’s seemingly a sort of sword or blade that’s made from a robust and sturdy materials, probably exospine, and is designed to be used in stellar fight or area exploration.
Such a weapon could be extremely helpful for troopers, explorers, and adventurers who have to defend themselves or carry out duties within the harsh and unforgiving surroundings of area. It could even be a strong image of energy and technological prowess.