You coud add Blastoise d...
It would work very well to knock out a benched Delcatty, (though it needs to be used to get rid of your weakness)
So here are the changes I'd make:
+1 Squirtle, +1 Blastoise d, +3 Windstorm
-1 Bronzor, -4 Basic Metal (with Castaways, extra draw with Bronzong, and the...