Shakugan no Shana Season 3: Final Episode 18 English Dubbed Episode Title:Spiral of Conflict.Episode Description:Yoshida witnesses the commencement of the ceremony to form Xanadu. Lamis starts to operate the plan with Yoshida. Hecate's purpose is revealed as she is sacrificed to the Snake of the Festival. The three remaining Gods of the Earth move in to attack the army of Crimson Denizens that have arrived in Misaki City. This gives Shana and her companions an opportunity to reach the Serei-den. Shana and Yuji lock in their own confrontation as an array of battles surround them.