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Personally this team has a LOT of issues. I would actually cut Cinderace completely. It has zero synergy with this team other than a fast pivot and takes fore hits which half your team does fine. I would also cut ogrepon and zapdos. So I would go.
Raging bolt, skarmory, heatran, zamazenta...
OVERVIEW:
Team Building Process:
Hoopa-Unbound:
I wanted a slick scarf user who could hit hard and sport some nice coverage options
Skarmory:
Wanted to do hazard stack and needed a wall who could take uturn hits for hoopa amd self heal with ground immunity
Heatran:
Needed a special wall...
Sorry for sloppy RMT and short explanations. I just feel is is only UU tier and to a good player this team sort of explains itself with it's pokemon choices and sets. It really is a simple balanced stall team is all. Feel free to leave feed back and ask any questions for a deeper explanation!
Choice Scarf Flygon can be annoying, same for Swampert if you some how misplay. Chandilure can be as well. However, the only real threat to his team I was able to spot was Amoongus. You have to either deal with it using Krookidille or keep trying to mirror it with Roserade until you can. Also...
Hazards Always Win Games!: The Roserade & Skarmory Team
Overview:
Team Building Process:
I wanted to design a team around toxic spikes that could be viable in UU. I opted for Roserade.
I chose Skarmory to back her up because he is very good with setting up spikes and they cover...
Happened on older account I do not have access to unfortunately, but can definitely drop replays. Older replays were on the phone the other account was tied to. Thats why I did not type proof of peak, but I'm telling the truth. Either way, the team has been very reliable for me and does well...
However I think on your team you made an accidental mistakes with kartana he should definitely have 31 Atk Ivs lol. As for Lando I don't believe the speed evs are necessary if I did switch to tornadus I'd probably play taunt. It would be cool to have a second regenerator but I don't think it's...
I'm a fan of all of these suggestions and agree with most of them and actually was thinking of building a Mew team just like this with Tornadus (can't let Mew go I love spikes lol) However all of your points are strinkingly valid and figured to myself I wanted to go scarf Kartana earlier but...