I'm surprised no one talks about the scheming capabilities of Aeslin.
Whenever I see a scheme that needs a scheme marker or 2 near an enemy model, Aeslin is the model to do it, with the Draw Out Secrets trigger. In fact, out of the whole NB faction there isn't another model that can put scheme markers down next to an enemy model (unless you are doppleganger with don't mind me). I've taken Aeslin out of keyword because of this and I never regret it.
Stone intensive yes, but trade up 1ss for a VP, worth it, even better when you don't have to stone for it.