In the context of the trio itself, from an optimization standpoint, you could replace Kanamia with Velmehtra's Brilliance and take the bonus for +10 characteristic points and +1 to the companions' learnability from the region occupied by Arc.
What you lose:
- 50% curse resistance
What you gain:
- +10 to characteristics (in your context, a doubled pool of AP) and +1 to the learnability of both companions
- Leadership on the Knight, which, among other things, will speed up the "outfitting" with injury protection for the squad (it will boost the Kanamia doctor)
- A couple of free skills (I assume heavy armor and one of the special attacks) on the Knight
Ничто не возникает из ничего и ничто не пропадает бесследно.
Если где-то чего-то убудет, то в другом месте добавится.
(Закон сохранения).