hey can you take a look at this post, and maybe do something with it? either bring it up with some qc members or change it to something that you know is best. thanks!
There is not something overly specific that's the point. Against a balanced rain team for example, if you manage to eliminate Tornadus-T you can then sweep, where at +0 you couldn't because steels such as Jirachi and Scizor could take a hit and then cripple back, where at +2 they are OHKOed.