As Blastoise is my favorite Pokemon of all time, I feel I need to break this to you:
Blastoise is by no means a 'sweeper' type. He's a bulky Pokemon. With the right EVs, Blastoise is one tough cookie to bring down in the UU tier. I have one with a balanced EV spread between HO, Def and SpDef.
Team Axis for Pokemon X and Y. Calling it now :p 01/08/2013