Sol Titanion, known as Sol Titanian (ソル・ティターニャン Sol Titanian?) in Japan, is one of the Einherjar Eight Warriors in Mega Man Zero 4. Titanion is based on the fairy queen, Titania. She resembles an atlas moth or other saturniids. She occupies an artificial sun that was originally designed for weather control but modified it to overheat and spread the heat waves for desertification. The fight takes place in a room with no walls; in addition, it is filled with strong sunlight in which if Zero stays in for too long, he takes severe damage.