Going to keep this short and to the point.
Shana's speech at the end and confession of love to Yuji made this the best episode this season. And holy crap! SABRAC IS INSANE NOW, not only do Johann's bandages prove useless, but he could destroy the gate between worlds! He has also tied his ENTIRE EXISTENCE to that castle he was standing on.
Shana also revealed the strongest unrestricted spell in existence, which I knew was coming, seeing the tune of this season but.... love. Yep, in Shana even love is an unrestricted method... just wow.
But the way she declares all this was great, can't WAIT for the next episode on January 6th, it's definitely going to be awesome ~<3