True. Nattorei is one of the few pokes that can take 2 +2 Life Orb Stone Edges from a Kabutops all the while scaring it off with a STAB'd Seed Bomb. Waterfall would also be lucky to be a 2HKO since it's max damage output is 51.1%. BTW, the Nattorei spread I'm using is Relaxed HP 252 / DEF 252 / SPDEF 4.Possibly. Also seems like Nattorei will destroy rain offense with it resisting all common attacking types found on rain offense except Ice.
I've been looking for a Rain Dance counter for days, and it finally dawned on me today that Nat does it perfectly. He blocks off Kindgra, Kabutops, and Ludicolo, the three biggest RD threats in my opinion. I wish he could run Leftovers over Shed Shell, but, like everyone has said, Shanderaa destroys it. I hope a Shadow Tag clause is put in just so I can use Leftovers (although it messes up the ST Shanderaa I wanted to use).
I'm a little torn on what set I want to use since he has so many options, but I've narrowed it down to this:
Relaxed
HP 252 / DEF 252 / SPDEF 4
Shed Shell
-Seed Bomb
-Leech Seed/Level Ground
-Gyro Ball
-Thunder Wave/Curse
As you can see, I want him to tank instead of support since I'm not too fond of entry hazards, even though it's apparently a sin to not use them. Either way I go, I feel he'll drive opponents crazy, so I LOVE THIS GUY!