From the Compendium: == RETRO ENERGY (Skyridge) Q. Can someone play a Retro Energy on an Espeon, discard the Espeon card, and then use Rare Candy to evolve the Eevee into a Vaporeon all in the same turn? A. Since both cards break the standard rules of evolution, this particular combination can be considered legal. (Mar 18, 2004 PUI Rules Team) Is this the only way to get around to re-evolving the Pokemon on the same turn? So if I have a Water type Swampert and want to re-evovle to Swapmert-EX or vice versa and I attach Retro NRG then the only way to re-evolve is Rare Candy?