Considering that Flamethrower uses the gun model in its animation, what they could do with Flamethrower is rework it so that it is AOE Blazing Shot, and then rework Auto Crossbow -- which uses the multitool in its animation to be AOE Air Anchor. Auto Crossbow could work like Blue Mage's Winged Reprobation spell where you can spam it a few times before it goes on cool down.