Shakugan no Shana Episode 23: Battle at the Palace of the Stars
Episode 23 of 24 of Shakugan no Shana, aired March 14, 2006, 25 minutes. Available with English subtitles and dub where released.
Episode summary
While fighting within the Seirei-den, a spell is cast which drains their power of existence for a time, however, Margery Daw comes back and destroys the spell. Ultimately, it is now up to Shana to decide the fate of Yuji.