Trainers,

we’ve been collecting data and testing several Eevee-lution theories for the past few days. Today, we’ll be presenting the results of our research and explaining how Night/Day Eevee evolutions work.

Research Summary and Results

There are two ways to obtain Umbreon and Espeon: by using the one time name trick or by evolving your Eevee under special circumstances. The latter can be used multiple times with the same result, unlike the Sakura/Tamao naming trick.

You can evolve any number of Eevees into Umbreon and Espeon, if they satisfy the following criteria: