ok so I'm not entirely sure this guys (cloyster) is OU, but I treat him like it so here's my build and tell me if it sucks, bear in mind that I needed a spiking wall to complement my fast, hard hitting dragons:
IV's: all are 31 but attack
Ev's: 252/0/252/4/0/0
Moves: Ice Beam, Hydro Pump...