Weapons/Heavy Bowgun/Grounding Fulgur IGrounding Fulgur IRarity 6Heavy Bowgun · G. Fulgur Tree treeRaw180Element—Affinity15%Slots2 / 1CraftingUpgraded from Yian Kut-Ku Cannon I.UpgradeGuardian Fulgur Fang+×5Guardian Fulgur Tail×1Guardian Fulgur Certificate S×2Thunder Sac×4