A secondary professional master of a certain American comic

Good news: I traveled through time
Bad news: It's an American comic
Good news: There's a cheat code
Bad news: It's the World of Warcraft sub-profession system
Good news: All professions
Bad news: I have to start all over again
Looking at the self-destructing sheep that was gradually taking shape in his hand, and then looking at the gray flying golem at the top of the engineering list and its several advanced versions, Levi couldn't help but sigh. When would he be able to drive a Gundam...