Warrior is a class I found surprisingly deep or adaptable where I'd presumed it at first hammer-go-boink straightforward.
A class that makes little sense in this is Trickster, though.
If we had RL co-op and not pawn co-op, I would see class viability in that. As a role categorically without DMG output, you're as is relying on pawn AI to synergise your entire kit with. Not happening.
Meme moments aside, pawn AI has been great in this for me but nowhere near the level needed to get everything out of how trickster was designed to play. His smoke wall conjure is awesome, for example, but even pawn commands don't see such a simple skill's potential met.
Oversight, IMO, to have this class in the game as is.
Currently running Mystic Spearhead but haven't an opinion on it just yet. I've missed my early-game archer ever since leaving it though.