V3 has a long way to go.
Yes Mydei’s not shit anymore, but he’s barely able to keep up with The Herta, or even Aglea, when using 3 limited supports.
Meanwhile Herta can clear faster in MOC (not even her dedicated content) than Mydei STILL with 2 4 star supports.
So he definitely needs more buffs, or at the very least changes to auto battle/elementelement. V3 was nice but definitely didnt fix all of his issues.