Transmigrated as a Master of All Trades

In the world of MMORPGs, a "Mule" is a throwaway account used only to store items. It isn't meant for combat. It isn't meant for glory. But when [Protagonist Name] wakes up, he isn't sitting in front of his computer screen anymore. He has been transported to a living, breathing world of swords and magic. He didn't arrive as a legendary hero. He arrived as his warehouse alt account. This is no longer a game. But his stats are very real. He brings with him: An inventory filled with legendary, world-ending materials from his gaming days. Grandmaster-level proficiency in every single Life Skill: Blacksmithing, Alchemy, Enchanting, and more. And, unexpectedly, a talent for magic that defies this world's logic. In a land where mages are rare and grandmaster craftsmen are legends, he is a walking anomaly. He can forge artifacts that kings would kill for and cast spells that shake the heavens. He thought he was just a storage unit. The multiverse is about to learn he is the ultimate powerhouse.