tales of zestiria alternate ending

Technically you can get the bad ending immediately after your 4th trial as long as you don't fight Zaveid outside Pendrago. the secret of love Without Sigfried, understanding the story from the Iris Gems and the history of Camlann, you still couldn't purify Maotelus- the party doesn't make the connection between Heldalf and Maotelus until right after Zaveid joins (forgot if it was a skit or a cutscene)