The Mad Scientist is a shop NPC. He can teach a player the Electric Fighting Style if paid 500,000. The Mad Scientist can be found below the Skylands, hiding behind one of the rocks on the lower island. You can relearn/switch back to the Electric fighting style by talking to him whenever you like.
The Mad Scientist can also be found in the Second Sea, next to the volcano at the Hot and Cold Island, or in the Third Sea, at the Castle On The Sea.
Appearance
The Mad Scientist is an animal humanoid with green eyes, wearing a lab coat and brown pants.