The hound that enjoys being on a leash is most dangerous
A creature from a world void of life Serious Sunset seeks companionship in the form of battles. As long as their are strong opponents they can fight they will follow orders. the first group to capture Serious was the Inquisition, ignorant of a world full of life Serious Sunset eagerly follows their orders as the inquisition always sends them into fights with tough opponents. While Serious has below average durability they have no vitals and are immune to poisons. When they run out of HP they dissipate and return to a chaos spring, currently Inquisition has them set up in their bases so Serious can't run away.
Fighting style, Serious is a mid range close range fighter using Lighting attacks when the opponent doesn't approach. They like ambushing and tricking enemies. The way they cast spells all looks the same so they will use that to cast only one spell and when the opponent starts dodging it they switch up spells while looking like they are still casting the same spell. They will also sometimes cancel their spells to just through a weapon or go in and attack. More than anything they enjoy the thrill of blindsiding someone.