Howdy Pathfinder folks! I'm looking for some advice on a rogue build.
I'm running a Pathfinder game right now and I've got a new player; he's still pretty new to the rules as we've only been playing since October. He's got an unchained rogue that's focused on finding and disarming traps. In the future he wants to be good at fighting spellcasters—disrupting their spells, optimizing his sneak attack to drop them quickly, picking up rogue talents that'll help him against spellcasters, things like that.
I don't really know what to tell him. Have you seen a particular rogue build that's good against casters? Any advice on how to pull it off? I'm willing to let him retrain to take an archetype if there's a good one for this build.