I hope from me XD
Ironically, that is the premise. Nothing can survive 2 strikes from powerful Psychic and Fighting pokemon. They are all wallbreakers, weaking each wall to the next one be free to sweep. It's funny when you see in NU that all of the main counters of both Gurdurr and Sawk (Bar Musharna, but that has no counters :P) can be weakened move by move before being taken out by what it was meant to counter. That is true for Gardevoir and Musharna.
(It must :P) I don't know if rain at all is troublesome. Seismitoad counters all rain abusers bar Ludicolo and random stuff with HP Grass (Mantine can't OHKO with HP Grass) and Gardevoir can revenge kill most. I'll try Regice, though, although my team is weaker to Sun than to rain (Damn Jumpluff and Victreebel). Which would be Seismitoad's set?
I thought on adding a Skuntank before, bunno why I didn't :P I hope it'll solve a bit of my sun weakness ^^ Thanks ^^