The Librarian is a good support class. She has a single-target heal that also cures bleed & blight, a single-target stress heal, a party-buff that changes depending on light level, and a special ability to boost xp gained per expedition...good if you just lost your entire party of lv 6's and want to get a new squad up to speed fast. Sadly, after reaching 6, she's not that good...Plague Doc does better heal, Jester does better de-stress, and her level boost ability becomes worthless unless you also mod out expedition level limits.

The Duchess... ... ...I mean...damn...she's a beast...basically an Abomination on steroids. She'll stress the hell out of your party though.

The Profligates (a group of 6 heroes created by muscarine) are also pretty neat. Each with their own benefits and drawbacks. My favorite is the Shrapnel, which can become a great crowd control with the right trinkets (REALLY GOOD for trips down to the farm)

Just started playing with the Exterminator. He's all about blight...to the point of potentially also blighting everyone in the party as well. There's ways to mitigate it, but Shieldbreaker is almost as good without the drawbacks.

Lastly, The Divinity is a neat idea...but a pain to actually get to be useful (depends on unique trinkets, and has 0hp, so always at deaths door)...also its special ability to hijack enemies to fight for you can crash the game when dealing with any enemy with the same ability.

Yeah the libriarian is nice, i played wirh her in the last playthrough. I dont like the duchess so much, since i also dislike abomnation. The profligates are also really well made. I mostly like husk against bosses,i used shrapnel not that much but it seems fun. Well for blight i always use plague, just too good but exterminator looks really good. Until now i didnt used the Divinity, there atw just too many class mods. My favorite is the Robin, typical classcannon with huge damage/crit

*ronin

Butcher Bird is an amazing bleeder, and if you can get him on a good team Ronin is a boss killer. Ronin is crazy fragile and needs a few turns of setup but he can really dish it out.

ronin is broken with an -50 damage/healing/hp +1turn accesory
but glass canon af

I guess it's Exterminator or Salamander. Exterminator has riposte, high blight and strong buff and stress relief (very good on Courtyard). Salamander has something like Finale, but can be used multiple times. Also bleed and high agility made her better.

Beastmaster

My favorites: Duelist, Janissary, Steel Driver, Homunculus.

The exterminator is a beastly support, buffs resistances of the whole party for whole battle, can pull, can deal different types of damage depending on his trinket loadout, can stun under right circumstances

Steel Driver is a wonderful character for his virtue chance ALONE, but also has armor piercing and can move himself back to the front if displaced.

Milkmaid has great heals, good damage dealing capability against almost anything that can be bled or blighted, and being immune to hunger, disease, and bleeds means she is just all around good to bring so long as you remember that she has low hp and can't heal with food.

Exaelus Enigma is a beastly bleed dealer with armor piercing on his single target attack, and his fragments and shard collecting capability make him one of my go-to's.

Twilight knight is a great melee damage dealer, with one of the best riposte moves i've ever seen, also a great stress healer roughly on par with the Jester.

Ironman is good ranged damage dealer and secondary healer that never feels overpowered but is pretty much always useful.

Actionjacks classes(pit fighter, ironclad, ronin, cannoneer) are simply op damage dealers, cannoneer made beating the heart with no deaths easy. Their main balancing weaknesses are that they have very little support capability and don't work well when shuffled.