I'm preparing to run a Jade Regent campaign and while reading up on the NPCs, I noticed that Sandru has a +2 shield bonus to his AC. However, Rogues are not proficient with any shields and Swashbucklers gain no additional proficiencies other than a single martial weapon (Scimitar).
I can't figure out how Sandru uses a shield based on his feats, abilities, etc... without incurring the attack penalty.
Anyone know?