Spellburn Bomb

The spellburn bomb is a weapon originally designed to combat beings that cannot be killed conventionally due to reforming via magic, such as djinn. A spellburn bomb effectively burns off all mana and shatters most spells in an area within five meters of it, something which is incredibly painful to any creature within that range. Some shielding spells can mitigate its effects, so coupled with the extremely localized range and prodigious cost of crafting them, these weapons are exceedingly rare.