Umbreon is ubiquitously considered the most ... card's price up toward its next closest competitor. For a long time, Leafeon VMAX was more expensive in Japanese than its English counterpart ...

Fan merges Pokemon with Portal game into Mecha Umbreon concept ... has already created mecha forms for Eevee, Vaporeon, and Leafeon. It's likely that they'll continue working on new Eeveelutions ...