id argue knights lack their aspect. or at least their session lacks it. beta kids only had 24 hours in their session, post scratch trolls all wanted to kill each other. not sure how the prescratch trolls would factor into this w latula, but there's evidence to show part of the knights challenge is to overcome a lacking in their aspect

I’ve shown doubt about this theory before, I don’t know I guess I’m stubborn and I don’t exactly like the idea of a Class existing determining a good chunk of the Session- Or the Session’s condition determining someone’s overall personality. Honestly with his Time Loops Dave was the one with the most Time of all of the Kids and definitely served it left and right helping Jade and Rose with anything they needed. Similarly, Karkat is very much tied to Blood rather than lacking it at any point. I also feel I dislike the theory of the Session lacking the Aspect of the Knight because it downplays how good friends most of the Trolls actually were? There was a lot of weirdness and strife because of some of them- Aradia becoming more aggressive in the Session, Vriska’s schemes, Eridan in general, Gamzee snapping. And most of this became more notable after they had already lost, not before. Eridan fought Sollux a couple of times through the game, Aradia smacked the SHIT out of Vriska, and also had a weird relationship with Equius, Vriska was an asshole to Tavros, but other than that they were a relatively stable as a group.