Just popping in to say that Kyubes + bulky Starmie + Mega Sab is an incredibly effective core that I started using recently. I say this because Kyubes absolutely decimates the standard balance builds that are plaguing the metagame right now, and having an anti hazard core in Starmie + Mega Sab is a wet dream for this monster. Aside from stopping hazards, the two mons check / counter a plethora of threats in OU, including, but not limited to, Mega Gallade, Gengar (use SpDef Sab, it's amazing), Lando t, and pretty much any defensive mon not called Gliscor. Kyubes is just added to this because it takes on the few things that give this core trouble, such as Gliscor, Rotom-W, Mega. Gyarados, and has zero true counters. Also I really think that Kyurem is incredibly underrated right now, and I wouldn't be surprised to see it go up in usage from the pathetic, almost UU, benchmark it is currently sitting at.
Also I'm seeing more innovation, but that's for a different post. Kyubes and Meg Sab are still really good, although vastly underrated.