Dark Umbreon

Dark Umbreon from the [A card picturing a serene, dark creature.] option in Cards Of Fate. It can also simply be a random event.

In the event, the turn player receives the Soul Speed Buff for 6 Rounds. Also, if they have the Arcane Vision Buff, they receive an Ethereal Gem, Poison, and a Dark Crystal.

Trivia

 * This event was created in remembrance of the BGO user DarkiUmbreon, who passed away with little warning.
 * The event features an animation of a ghostly Shiny Umbreon, a Pokémon.