Complex sentence: She was formerly That Man's third servant, who first appeared as a wanted criminal on her own, with a mischievous attacks, utilizing a Halloween Jack O'Lantern-themed weapons, such as explosives.
Split into simpler sentences: She was formerly That Man's third servant, who first appeared as a wanted criminal on her own. Jack-O has mischievous attacks, utilizing Jack O'Lantern-themed weapons such as explosives.