Damaging Calidar Demons

Immunity to non-magical attacks is an old D&D BECMI rule designed to make high-level monsters tough to defeat. With equally high-level opponents, the issue isn’t much of a problem, especially in a magic-rich campaign world. However, this stumbling block can defy logic when a magical being faces an army of non-magical opponents, artillery, and possibly explosives. I’m not interested in throwing out…