Originally Posted by Fat muffinhead
will add in dusknoir, but iron ball weather pokemon are used to get weather up. TR rain does not help ludicolo, kingdra, etc...
Of course they're used to get weather up .__.
TR Rain helps Parasect (which you even have listed!) and Rain Dish Ludi (I've seen <a certain Smogon user> using stall Ludi (it was SwSw but I think it'd work well if it didn't have to run Speed and could gain even more HP back) to great success). You could probably make a case for Toxicroak in TR, too(base 80 Speed iirc and you know my thoughts on 80 speed mons in TR).
With TR Sun you can have Ninetales setting up sun and Chandelure setting up TR and spamming Heat Waves, but now that I think about it it's not something that absolutely needs to be in there. (but I think TR Rain does!!!)
omg I used too many parentheses
edit: (you may be planning this but if you're not I want to let it be known) I think you should add a "Counters" section to this for Prankster Taunt mons, Trick Room getting reversed (I know it already has a mention in the opening paragraph), and fast Taunt mons like Weavile and Crobat