Hey Smurf., nice to see this team being RMTed. I'm really sorry that I couldn't help you test more while we were making this team, but school is a bummer and occupied me for more than I would've liked. Great work on the RMT though, and hopefully we'll find some good suggestions in the comments!
One possible change I was thinking about was sticking Registeel in place of Milotic with a moveset of Toxic/Stealth Rock/Earthquake/Iron Head. This makes the team more weak to Fire-type sweepers and Rhyperior/Torterra, but SR helps us out in the first regard while the latter two are revenged by Venu or Heraboss, respectively. Toxic makes sure Ground-types don't get in for free, while EQ hits Fire-types looking for free setup. Registeel also counters Zam, Missy, and Rotom while taking on LO Venu, another threat, better than any of the team right now. I'll be testing it out when I get the time, and again sorry for not helping as much as I would have liked to.