A cheap enchant spell that adds fire and electrical damage to an equipped item — and cooks hotdogs.
Bang Bro is the spell tome Carl wins in the Bronze Boss box from killing Miss-Quill. For 5 mana it temporarily enchants a currently-equipped item with both fire and electrical damage (duration scaling with spell level, 5-minute cooldown), and can inflict Burn and Shock on targets — or, per its cheeky description, cook hotdogs. It can't be cast on flesh (except, unwisely, one's own).
Mordecai confirms it'll work well on Carl's magical gauntlet, though he warns against using it on the Xistera given how Carl loads it. It joins Carl's growing spell list alongside Heal and Wisp Armor, prompting him to invest in Intelligence.
A budget weapon-enchant spell adding elemental damage to Carl's gear.