Personally i think it is unfair and kind of stupid that pain gets extra elements, not only is it unfair, but it doesn't even happen in the manga, Pain so far hasn't shown a single elemental jutsu AT ALL. the charactor who got extra elements was nagato who is not confirmed to be pain. so far pains bodies and nagato arn't the same person, at least for now, but like i have been saying pain doesn't have extra elements in the manga, and shouldn't have extra elements in this roleplaying.