Potion (Vapor) rare
This oddly shaped orb with a flat bottom contains a constantly swirling green flame. When this orb is thrown, dropped, or somehow broken, the fire inside the orb instantly ignites the air around it, creating a 20-foot radius explosion. Each creature within the violent explosion must take a DC15 Dexterity saving throw. On a failed save, a creature takes 5d10 fire damage, or half as much damage on a successful one. Additionally, all flammable or volatile materials, chemicals or vapors within the explosion that are not being carried or worn also ignite or explode with non-magical green flames. These non-magical green flames are resistant to water and require magic or another alchemical material to extinguish fully