Everyone forgetting that MC's most win comes from strategic thinking that utilizes his versatility of his powers to its fullest to win fights and with his false memories, he now has another weapon in his arsenal.
Making him a slippery opponent that as a fight goes on, the bigger chance he can understand his enemies and win.
That's why I believe Met would defeat mc because he's the same, electricity is versatile (can use it can be used internally and externally, like that big ass energy strike) not as versatile compared to the mc but, is stronger cause he is a pure breed, unlike mc (pure breeds are just better in raw strength of their ability).
Though I believe electricity is just too much for mc right now and will definitely be utilized it, in instant big transformation, if he can control the chaotic reaction when he touches electricity in the future, as mc is the descendant of the 4th, he understands...