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Wormadam Steel is the best ToxicProtect Staller in UU. No joke. Its typing is amazing, and with sandstorm and entry hazzard support, it's capable of taking down some teams on its own.
I don't use Cacturne, it's too unreliable. Cradily is awesome, it's unkillable. I'm using a Spiker Omastar, a Rapid Spin Blastoise, a Lead Hippopotas, a CroDily, a Spin Blocker Dusclops, and a Staller Wormadam Steel. It's amazing.