you will be protected on the that turn though right ?
Yeah, but chances are you are going to go up against a different Trick Room team, so Parasect may get stuck in a rut if they gang up on it. It would be awesome to see Parasect sweep a team though :DLenihanman, but you can Protect+Substitute forever. And with Rain healing Parasect 12.5% per turn, and Substitute alternating with Protect you can stall infinitely.
1st Turn: Substitute and lose 25% HP... Heal 12.5% at end of turn
2nd Turn: Protect... Heal 12.5% at end of turn. Back at 100% Health
3rd Turn: Continue...
This way you don't even need Leftovers, just Rain.
I agree with you. Unless you have a Pokémon with Fake Out (Like Weavile, Hitmonlee, or Infernape) than I recommend not having one Pokémon with both Sunny Day, Rain Dance, Trick Room, whatever is your plan. Weather teams can be incredibly hard to beat once they pull it off. So, if you want to make sure you get the advantage over Rain Dancer's or Dusknoirs... bring Electrode.In my opinion it's better to use two separate pokemon for that strategy, because if you use just one, there are more chances to be killed in the act than actually setting up that strategy. Also, Bronzong says trick room every where, so you can use a Dusknoir in stead, it is also inmune to fake out an that's very usefull in doubles :P
(I think some of the words could be bad spelled xD)