Its ability, Dark Signal , is activated when from the moment you evolved your Umbreon-V to Umbreon-VMax, forcing your opponent to make one of their Benched Pokmon into their Active Pokmon, that is, you will be applying a "Boss' Orders" during that turn, being able to save a Supporter card on that turn and even saving a Boss' Orders from your hand, or use it to create a bluff in the game (depending on creativity of the situation)
The trend can be seen in boxed products as well
3 Professor Turo's Scenario is Great For Slowing Down the Opponent An Amazing Supporter For Resetting the Game State In a fast format, most opposing Pokmon are knocked out in one hit unless they have more than 300 HP
Most modern cards, on the other hand, start out much cheaper
Thank you Aquatics Pools & Landscape
This card is still good and useful, but itd be better if its ability was at instant speed