Use the Searing Cauldron near Ironhead Lake in Iron Marches to combine the Wyvern's Liquid Fire, Elemental Flames, Destroyer's Heat, a Flame Effigy Embers, and a Fire Imbued Heart, to create the Ultra Hot Sphere.
Hint: Gathered by looting the Megadestroyer's chest in Mount Maelstrom with the Quartz Vial in your inventory.
— In-game description
If this item was lost for whatever reason, it can be purchased again from the following vendor
|Grandmaster Craftsman Hobbs||Trader's Forum||Lion's Arch||1,020|