The Happiness Pokémon itself, Blissey, will be available to play as in Pokémon UNITE from August 18. It is in the Support category and can shield allies. You can see a preview of it in action from the Twitter trailer posted below:
What do you think, is Blissey a roster addition that excites you? What’s your favorite role to play in UNITE? Let us know in the comments or on Discord!