How to get Umbreon in Pokemon games:
* Evolve Eevee with high friendship: You can evolve Eevee into Umbreon by leveling it up during the night while its friendship is high.
* Breed with an Eevee that knows the move "Last Resort": If you breed an Eevee that knows the move "Last Resort" with another Pokemon, the resulting Eevee can evolve into Umbreon with high friendship during the night.
* Obtain it through trades or events: You might be able to get Umbreon from other players through trading in the game, or through special events hosted by the developers.
It's important to remember that using cheats or hacks to obtain Pokemon can be considered unethical and might not be allowed in online games.