Help with my Pokemon White Team for the Elite four?

I'd get rid of the simisage and raise a hydreigon (I probably misspelled that). It'll be quite a commitment, but it's worth it. It could take out quite a bit of the elite four with crunch, dragon claw, flamethrower, and fly. I would also replace Emboar's fire pledge with flamethrower. Your going to end up replacing Zebstrika after beating the Elite four when you catch Zekrom and battle N. I'd replace Gurdurr with Throh and teach him circle throw, superpower, bulk up, and earthquake/dig.