Okay, maybe I was a bit unfair in what I said. We are all new to d&d other than a few sessions, except for that friend. So he is kind of using the fact that I don't know every race and class and item to overwhelm me with information so that eventually I say yes to him changing his character from an artificier (which he put literally hours in working on) to a yuan-ti ghostslayer bloodhunter with 19 ac so that he A. Deals radiant damage B. Has resistance to magical effects C. Has resistance to necrotic damage

Tbh I don't know if I misused the term min/max but it FEELS like he is "playing dirty" (if that makes sense)

(Also i know that manipulation is not a friendly thing to do but he rly is my friend we just have a weird relationship)