Pyromaniac Gnomes with this racial trait are treated as one level higher when casting spells with the fire descriptor, using granted powers of the Fire domain, using the bloodline powers of the fire elemental bloodline or the revelations of the oracle's flame mystery, and determining the damage of alchemist bombs that deal fire damage (this ability does not give gnomes early access to level-based powers; it only affects the powers they could use without this ability).
Does this work with the Occultist Base Focus Power when you choose fire ?
Energy Ray (Sp)
As a standard action that provokes attacks of opportunity, you can expend 1 point of mental focus to unleash a ray of pure energy as a ranged touch attack. This ray has a range of 30 feet. The ray deals an amount of energy damage equal to 1d6 points + 1d6 points for every 2 occultist levels you possess beyond 1st (2d6 at 3rd level, 3d6 at 5th, and so on, to a maximum of 10d6 at 19th level). When you unleash an energy ray, you must decide what type of damage it deals (acid, cold, electricity, or fire).