When I was building this team, I had three Mons that I particularly wanted to check: Landorus-T, Heatran, and Mega Diancie. As shown above, the team has three Mons with Ice type moves, two of which will OHKO Landorus-T and one that will just decrease its speed. (Note that Conkeldurr's -1 Iron Fist boosted Ice Punch will OHKO Landorus-T.) Also, Zard's HP Ground and Landorus-T's Earthquake should be able to take care of Heatran, but just in case that it has Shucca Berry, the team have Conkeldurr to Mach Punch it. (Two Mach Punches will take care of Heatran.) For the matter of Mega Diancie, the team can use Earthquake, Iron Head (imao), Solar Beam (80% chance for OHKO), and Energy Ball (50% chance for OHKO). Thus, this team has no excuse for not being able to counter these three Mons.
Aside from the discussion of Zard threats, this team has enough moves to maintain control over the opponent's speed. Conkeldurr's Wide Guard is also useful for protecting the team against Diamond Storm, Rock Slide, Muddy Water, and opposing Heat Wave, allowing other members of the team to do what they got to do. And, I found Thundurus's Taunt particularly useful in eliminating opposing Wide Guard and Protect, allowing the team to continue to be an offensive force in the game. (Bye Bye Aegislash, etc.) With the addition on Landorus and Jirachi, Dragon types and THALK ain't a problem either. And lastly, Hoopa-U's Gunk Shot helps out with problematic Fairy types. (THE END)
Don't read further if you don't want to hear why I put Sunny Day on Hoopa-U.
Due to the frustration that Prankster Thundurus always use Rain Dance, I decided to put Sunny Day on Hoopa-U. Although this in most cases is a terrible idea, it worked pretty fine, allowing my Zard to Heat Wave or Solar Beam as needed (while causing Swift Swimmers to be rather useless). Nevertheless, I do not recommend that you put Sunny Day on Hoopa-U unless you know that you will have a Weather War. Thanks for your patience in reading this description, mate.