I am trying to build a character for PFS that utilizes Liberty's Blade's special traits against devils. Basically I want him to be optimized to kill Devils if one shows up. I know they probably won't appear that often in PFS but I like the flavor. Would a gunslinger be good? Get the musket to get touch attacks against Devils or maybe a pistol? I am thinking he makes it his sacred weapon to get all the boosts that come with that and if he sees a devil he can bypass all of their natural AC and just go for touch. Any advice?