Ana's Homemade Wyrmling Grenade! (Fire)

Made from the fundementum of a Red Dragon Wyrmling; the organ has been placed inside a small shell with a pin holding the two connecting gasses from exposure from air. Once the pin is pulled you can use an action to throw the grenade up to 60ft. All creatures is a 15 ft diameter circle must succeed on a DC 13 dex save, or take 7d6 fire damage or half as much on a successful save. An enemy within 5ft of the grenade cause use its reaction to attempt a DC 20 Dex save to shove the grenade 10ft back or dive onto the grenade to reduce the range to 5ft. 

In order to create the grenade, one must succeed on a DC 13 Dex Save and a DC 15 Alchemist's Supplies check. 

Pieces requried to create this item:

Red Dragon Wyrmling Draconis Fundamentum
Containment Jar
Scrap Metal

Notes: Damage: Fire