How about a monk? Dex based, so can take care of your traps and disarms. Especially if you pick up the Gloves of Thievery... slap 'em on, have advantage to disarm, go back to combat gloves afterwards. Monks can be considered enlightened, so fit nicely into a good playthrough. Since wisdom impacts their armor and their effects (knockdowns and such), that means you could also choose to MC them a bit into, say, a cleric (since monks are also associated with temples). It won't fit Asterion, Gale, or whatever, but you can use one of the hirelings instead. Or if you use the class for your MC, but then you'll probably be wanting a good healer/support type in the 4th slot.
But off-hand, the solution I'd recommend is turning Asterion in a bard. I think it fits his personality pretty well, fits nicely into the "sleight of hand" character slot, means your MC isn't a bard, and it is a very flexible class. You do have three subclasses, to pick from. The Lore caster one (which can make a great healer/support, get Warden of Vitality at level 6), the combat buffing Valour, and then the more damage dealing Swords. Basically, where normal rogue Asterion is more focused on stalking prey, a bard one would be a bit more focused on charisma. And if you do want some rogue on Asterion regardless, well, just MC into Rogue at some point after 6.
Last edited by Talismina; 19/10/23 05:11 PM.