K well since no official TR's are commenting, guess I will hehe.
It's nice effort Expert Physics, especially since you let him retain his sandstorm team and such even when replacing Tyranitar. However, I would try not to overstate Hippowdon's bulk in how it can wall CB Terrakion. Adamant CB Terrakion scores a clean 2HKO against Hippowdon (SR cancels out Leftovers) and Jolly CB Terrakion does 88% minimum after two hits. meaning that if Hippowdon isn't at full HP or very close to it, it won't be a very effective check. Keep that in mind, and do damage calcs if you aren't sure how much an attack will do. I also fail to see how a Hippowdon can handle Volt-Turn. Scizor can just U-Turn out and Hippowdon will get blasted by Rotom-W's Hydro Pump. Regardless, he has a Celebi with Hidden Power Fire, so Volt-Turn is essentially already covered since he already had Forretress to take U-Turn.
@harsha, as I stated earlier, Celebi has Hidden Power Fire so Latias wouldn't really help the cause since it essentially does the same thing.
Either way, everyone gets better with practice and it's a solid start!
(19:01) galacticos: at least im not
(19:01) galacticos: 0-5 like you
(19:01) galacticos: gg bro
Galacticos (Random PO scrub who johned me) to user: Double01