Some combat headcannons! (Note for this: PVP basically refers to declared duels or fights between players, which comes with an implied set of rules. Not all combat falls under PVP, such as fighting mobs and some player combat, like a random attack.):
False is a trained PVP fighter-- A champion. She has a lot of experience and knowledge in PVP. She's also a very balanced fighter. She knows when to take control of the fight and when to hold back and let her opponent come to her. Her greatest weakness is fighting a trickster-- someone who doesn't follow any rules and uses underhanded tactics.
Cub is a strategist. He knows how to break down fights-- almost like a chess game. In turn, he's precise, only using however many moves he needs to win. He studies his opponents too, and tries to know whatever he can before they fight. His greatest weakness is being caught off guard.
Hypno is more of a street fighter. He never fought to win-- he fought to survive. Because of that, there's little honor in his fighting. He's 100% ok with stabbing someone in the back, running away from a fight, and using whatever tricks he can. (Its why he doesn't consider himself a good PVP fighter). Adaptability is his greatest weapon, as he learned how to fight with whatever he could get his hands on. His greatest weakness is being trapped where he can't weasel out and being limited in what he can do.
Gem is self taught. After years of training on her own, she's handy with a blade and wants to increase her skills. She tries to learn something from every fighter she meets, including the other hermits. After learning which hermits could best her, she goes to them and asks them for lessons and advice on how to better her skills, to varying degrees of success.
(False is usually very good about giving advice, but she sometimes finds it hard to explain herself, as she's never taught anyone before. Cub also tries, but their styles are very different, so he mostly teaches combat principles. Hypno gives her the most pushback. He appreciates her admiration, but he doesn't consider himself a fighter, especially not one she should be looking up to. Still, he tries to teach her a little bit about learning to adapt, and has even taught her some tricks that she is definitely NOT allowed to use in PVP.)