Any Suggestions are welcome
Melmetal Vmax requires a bit more of a build-around than other Arceus Variants. It needs 5 metal energy to get its maximum damage output of 280 so there isn't room for attackers other than Melmetal and Arceus. At most, you can play the one of Zacian from Crown Zenith to hit through Mimikyu safeguard. 330 hp is incredibly tanky and it can hit those critical 220-280 damage numbers. It's one of the few Vmaxes surviving rotation and is certainly an underutilized vmax. Try it out and test it for yourself.