Season 2 Episode 24 – Mark of the Monkey, Part 4

Luna's plan to free Ancient Fairy Dragon is hampered when the Minus Staff she was carrying gets reversed, causing Torunka to blurt out their plans. Regulus manages to destroy Zeman, who is simultaneously destroyed by Leo in the real world. This returns Torunka to his normal age, but doesn't free Ancient Fairy or the minused spirits. Devack uses those spirits to summon his Earthbound Immortal, Cusillu, and Leo barely manages to survive the attack. Torunka and Regulus return Luna to the real world, where she takes over for Leo and starts to get the better of Cusillu.