Oh, you have a decent lineup! But do you EV train? Hydro Pump from Salamence should've OHKOed Claydol, I think. And a Spiritomb being OHKOed by any non-boosted attack is like blasphemy to a fellow Tomby user.
My suggestion is to post your team in the Strategies & Movesets forum. There are plenty of people, who know far more than I, who can comment on it, and help make it stronger.