Just dropping by to say that Cradily is a monster as long as you have sand up. I outlasted a specsmence with one, granted I had 3 stockpiles and sand. Without those, though, Cradily might as well be a Sandslash without the power. Keep in mind he can't really do anything without sand and even in it, switching him in on a sweeper never really guarantees a stall. He's mostly a mid-game wall. Outlast a sweeper and cripple something else is usually his quota.
Welcome to the Pokemon forums, Calibun. Hope you stay a while.