what to name eevee to get vaporeon

To evolve Eevee into Vaporeon, you can rename it as "Rainer". Once you have enough Eevee candy, select which Eevee you want to evolve and click the pencil icon next to its name. Rename the creature "Rainer" and then evolve it to get Vaporeon. It is important to note that this naming trick only works once per evolution.