Am going to have to think about the Wizard path some more. (my daily 2 hour walk is coming up soon). Nothing about it screams "terrible" to me. But what am I gain.
I gain nothing at the UR level if I already have MEC.
At the relic level I lose 5 less hp when using MEC, but part of the fun of MEC is taking the damage and challenging the party to keep me alive. So that is almost a negative for me, certainly not much of a plus.
I gain a charm slot and 3 hp damage on level 0 and 1 spells, but lose 3 charms slots from charm necklace.
I've failed two skill tests in the last 3 years, so other than slightly helping speed up combat, I really don't see that as a plus. Overall, it feels like a wash, but I feel like I have more flexibility if I just keep the Charm Necklace.
At the legendary level, even with the expanded crit range I just don't feel like I will be hitting very many crits. And I now have a chance to miss completely. So its unlikely I will even try. As stated, the MM powers don't do much for me and might be considered negative.
The skill test bonus is now at a level where the token is worth something to me. Yet a magic missile still isn't quite at the power of a fireball, so that's good.
I have to think about this. The legendary sort of feels like a boost I'd want at a relic level, so is it worth the cost. I think overall, my damage levels will still be close to BIS if I just skip this altogether and my overall build will be more balanced.
Personally, I feel like you should abandon building this around MEC and just give straight up spell damage bonus. Maybe add 1 or 2 spell FA at the legendary level. Just my current thoughts. Will be thinking about it more.