The fun just does not STOP when it comes to character and party customization & development! For example, I did a puzzle weapon for a wand that my Practitioner is using. After some character development and buying her an expensive new Oakheart Staff, she has Strength very comparable to my main damage dealer, my strength-focused Rogue. Strength can also be important for casters as u can develop their physical spell attacks too, and even specialize in Bladecasting that focuses on weapon skills. This is important because her one spell does a TON of damage based on physical strength, and the puzzle weapon I unlocked 2 tiers of has a 100% chance of inflicting armor Rend. So not only will she hit for big damage when she has enough spell points to cast (for free, btw, since spells don't use Opportunity Points, only Spell Points), she will strip Armor from enemies who may be heavily armored. She's a BEAST, in other words, heh.
Limiting characters to 4 Mastery slots is huge, because u can create real synergy and interesting builds based on those Masteries. They are game-changers, and you'll have to select them carefully and thoughtfully. Of course how u develop their skill trees individually is important too, there's a LOT u can do there to create interesting and unique builds. I have about 9 characters now of all the various archetypes and not 2 of them play the same. And when I switch party members, the entire strategy of the party may change based on what they are capable of. Right now my party is Me (Rogue, focused on Alchemy and giving Draughts Of Strength to other party members to temporarily increase their damage), Fighter (who I'm focusing into a Guardian, aka a pure tank with a bit of strength to also do some Mental damage), another Rogue (who is much stronger and deadlier in combat), a Bard (focused on chugging booze to sing songs that reduce ability cooldowns by 1 and also shrink the enemies for a damage-free turn), and a Practitioner focused on setting enemies on fire, doing high Mental damage and also now has a very powerful Physical and armor rendering spell attack. I could list my reserve roster characters and they would all be different as well. There's a lot of flexibility here and great customization.
Just fun to play and talk about. Thank u for reading and hopefully this helps someone make up their mind if they are considering playing the game! Cheers!