YMMV / Ben 10 Alien Force S 3 E 18 Vendetta

• Complete Monster: Ragnarok is a criminal who makes a living by using his ship to drain stars of their energy for profit, killing all life in the star system that depended upon said star. He attempted to do this to the Sun, before being stopped and imprisoned in the Null Void, allegedly killing Plumber Devin Levin. Escaping imprisonment years later, Ragnarok once again resumes his attempts to drain the Sun by finding the key to his ship, where at one point he sadistically beat Kevin to near-death in his search for the key, and upon finally acquiring the key he resumes draining the sun.

---