Goblin Scavenger
CREATURE 4Many goblins scavenge materials, shiny objects, and anything else they can get their hands on, but a goblin scavenger is the best at finding such useful items. More importantly, they're great at making use of them without killing themselves. Most of the time.
Goblins can be found across Golarion, sometimes threatening taller humanoids (whom they refer to as "longshanks") and sometimes redeeming harmful history by working alongside others.
The scavenger's gun is a comically oversized hand cannon that has the fatal d12 trait and a 20-foot range increment. If a Strike with it critically fails, the weapon misfires and explodes, dealing 1d12 fire damage to its wielder. It's a martial one-handed weapon with 2 Bulk and a Price of 10 gp. It has the uncommon, cobbled, and goblin traits. The cobbled trait means that on a failed attack roll with the gun, the user must succeed at a DC 5 flat check or the weapon misfires.
Critical Success The creature is unaffected. The goblin scavenger realizes that's because a firework fell at their feet and takes 2 fire damage when it explodes in their face.
Success The creature takes half damage.
Failure The creature takes full damage and is Dazzled and Deafened for 1 round.
Critical Failure As failure, except the creature is also Stunned 1.
The goblin scavenger intuitively knows how to make use of junk. When they use a weapon with the goblin trait or an improvised weapon, they do an additional die of damage (already included in the Strikes above).