[Rhys DeAnno]

Toxicroak: SD is good but the set I've had success with is SubPunch LO. The combination of Sub/Focus Punch/Sucker Punch can always be a huge pain to deal with for offensive teams, and under rain Toxicroak can run LO for extra power and still be healing every turn. Ice Punch is also pretty good in situations where Focus Punch is walled and Sucker is inadvisable, so if you get the sub up its likely you're going to cause some trouble with this set.

Pros: 2 great sets (SD/SubPunch), good against offensive teams, sets up on most Keldeo, pretty good vs Ttar
Cons: Needs rain, sort of bad against the Hippo

I think B tier is perfect for it.

Kyurem-Black: This thing is stupidly bulky and its defensive typing is terribad physically but pretty good specially (Focus Blast and nonChoice Keldeo are the only problems). I think the key to using a more defensive set with him is Sub+Lefties (Sub is really good if Focus Miss is coming at you frequently), and either good hazard control or Roost to keep him healthy. Also this thing has Dragon Tail if it wants it which is an interesting option.

Pros: Excellent wallbreaker, good against rain and water types in general, basically its like a Hax with the option to go bulky
Cons: Ugly defensive typing physically, speed too slow to actually outspeed things

I think it should stay in A tier for now, it's more versatile than it gets credit for.

Skarmory: This guy seems pretty great, supposedly Genesect was shitting all over it when I was gone but with the rocket bug banned it feels like it might be able to go A tier to me. Its notable that if you use a specially defensive set it might be able to wall Tornadus-T in most situations (Heat Wave is a problem). I'm less confident with this than the other two though and should probably test it more.