Auntie Agatha's Jar of Fireflies

This glass jar of green-glowing fireflies emits dim light in a 5 foot radius.  If the lid is removed or the jar broken (for example being dropped or thrown), the fireflies within latch on to any non-hag humanoid within a 15 foot radius and then erupt in green flames.  Any creature affected takes 17 (5d6) fire damage, there is no saving throw to reduce this damage.

This jar of fireflies was created by the green hag Auntie Agatha Gristlegums of the Frostmoors of northern Avania.

Notes: Utility, Consumable