You ruled that Team Rocket's Magikarp's Rapid Evolution can be used the turn those Pokémon come into play [Ed.Note: see also "Rapid Evolution" (Jul 13, 2000 WotC Chat Announcements)]. Does that mean that if I had played TR Magikarp down on the first turn of the game, I could evolve him (I know that this is not possible, i.e., I cannot get 3 [W] Energy on Magikarp but if we ignore this limitation) ... would it be possible since Rapid Evolution ignores the normal evolution rule?
Yes, *if* you could get three water energy on Team Rocket Magikarp.
Source: WotC Chat (2000-07-20)