User blog comment:Tansquare/Make a weapon, any weapon./@comment-184.19.143.216-20120327224539

Maybe you could have an accordion-like weapon/spell that bosses cannot stand the sound of, but normal enemies like. Enemies will follow you without hurting you, while bosses will take massive damage if they are in the attack radius. It costs 2 glass, 10 wood, and 50 copper ore to craft