After the fight with the Titans, The Knight will attack the gang, and Susie knocks off its helmet, leading to a fight with the Knight without their helmet

And in the case it's Dess, Noelle won't be able to bring herself to fight her sister, and by this point, you have to remind Dess who she is and that what she's doing is wrong, as Noelle won't let you attack her (this is based on a theory my bro gave that Dess got corrupted from spending too long in the Dark World, and became the Roaring Knight)

What do you think?