I can't be convinced that you're not trolling at this point. If you wanted to show to us your competence as a battler, in any sort of logical manner, you wouldn't be in here posting statistics about how easy it is for Kyurem-B to kill the likes of Gyara, Scizor, Forretress, and Ferrothorn with moves that people will already believe are on the set.
Seriously. Why would people's first switch-in be Gyara when they're staring at a Pokemon that often has Fusion Bolt? Doesn't DM get a guaranteed OHKO after SR anyway? Why would you even include a statistic for Scizor, who is almost always just going to come in for the revenge kill and not give Kyurem-B the chance to even attack? Why would you bring two Pokemon into this conversation that are probably going to be initial switch-ins, and as such won't require you to do anything more than 2HKO?
You know how our set has DM on it? Well,don't use it immediately. That's how you play the set. HP Fire is more common for Special-Mixed than DM is, so the longer you can get away with not using it, the more bang you'll get for your buck.
Your lack of understanding on what makes Landorus-T bulkier, as well as what gives him a better movepool (*hint hint* it's the 145 base Attack) for the efforts of this team make me question how much you actually know about all that goes in to the team-building process.
You go Kyurem-B for the much more usable 175 base Attack without investment, btw. Well, that and mindgames. Kyurem-B's set usage is so much more ambiguous than that of regular Kyurem; so much moreso, in fact, that it alone outweighs the 10 higher base SAtk you're getting from the switch.
EDIT: As TRG said, this isn't the final draft of the team, either. Chances are extremely low that we'll manage to make a team that tops the PS leaderboards on our first go. Look at this thread as more of a collaborative, on-going experiment in team-building on the whole as opposed to a collaborative, results-based team-building process. Comparing how good we are competitively makes no sense when you consider where we actually stand in the grand scheme of things.
It's like we're all trapped in a giant pit and we're told that in order to get out, we'll have to work really hard and also discover this super ultimate secret to life or something, and you're gloating about how much better than us you happen to be because you're much more physically fit than you are.
It makes no difference without the secret.