Directed Blast

At 6th level, a grenadier can detonate a bomb so that it splashes in a 30-foot cone rather than affecting a radius. The cone starts at the alchemist and extends away from her in the direction she chooses. Each creature within the cone takes damage as if it had suffered a direct hit from the alchemist's bomb, but succeeding at a Reflex save (DC = 10 + 1/2 the alchemist's level + the alchemist's Intelligence modifier) halves the damage.