Flash grenade

Flash grenades were a type of non-lethal explosive developed by deep gnomes that disoriented and blinded foes.

Description
These explosives were about the size of a chicken egg and were fragile.

Powers
In order to be set off, a flash grenade had to thrown onto a fire source. Once set off, these grenades exploded out into a brilliant flare of light. creatures with eyes sensitive to strong lights, such as the drow and many denizens of the Underdark, were especially affected by this flash.