Item
Shrapnel Grenade
Turn a handful of metal into a storm in every direction
Primary ingredient: A powder charge packed with jagged iron fragments.
Throwing this grenade is a general action of 1 tick. It bursts at a point within 30 ft. Every creature in a 15 ft radius takes 4d6 physical damage with no standard save. DR applies normally to each creature. Total cover blocks the explosion.
At the GM's discretion, a high-level creature with exceptional Reflexes may attempt to leave the radius entirely under the general rules for areas of effect. A success avoids the explosion; it never merely halves the damage.
The grenade cannot deal critical hits. Its fragments damage fragile objects but gain no special material properties. A grenade filled with adamantine would be a unique item designed with the GM.