Bag of Heads

This bag has the ability to turn any head that enters it into a a pocket sized grenade that looks like the head of the creature that entered it. After the grenade explodes the target will have to make a constitution saving throw on a failed save the target will take 8d6 fire damage and will be blasted back 15ft if they hit a wall/object after being blasted back they will take 1d8 bludgeoning damage and on a successful save the target will take halved damage taking 4d6 fire damage and will stay in the same area.

Notes: Utility, Container