They continue to spend these last episodes setting up a conflict that we’ll now either have to wait to see or may never see if there isn’t another series. That annoys me a little bit given they could have ended the series with the end of the Festa and this all could have happened in the next series. However, Ayato fights a Hydra and while there is no sense that he might actually lose or be injured (despite having just woken up from three days unconscious), he fights a hydra. Sorry, I have a serious thing for dragons and this one was pretty amazing even if it did only serve as a momentary diversion in the episode.
I’ll do a whole series review soonish.
The Asterisk War is available on Crunchyroll.