When it swims at full speed using its long, webbed limbs, its forehead somehow begins to glow.
水かきのついた 長い 手足を 使い 全力で 泳ぎだすと なぜか 額が 光り輝く。
Release information
This card was released in the Mega Evolution Series as a Pixel Cosmos Holofoil MEP Black Star Promo available in the Mega Evolution Three-Pack Blisters from September 26, 2025. In Japan, this card was released in the Scarlet & Violet Series as one of seven SV-P Promotional cards available in Pokémon Card Gym Promo Card Pack 10, which was distributed at Pokémon Card Gym venues able to do so from April 18, 2025.[1] The Japanese print features the Pokémon Card Gym logo.
It is reprinted in the Ascended Heroes special expansion, originating from the Japanese MEGA Dream ex subset. Each release has two Mirror Holofoil variants featuring either a Water Energy symbol or a Love Ball.
Trivia
For a list of Pokémon cards with Abilities that require the Pokémon using it to Knock Out itself, see here.
Golduck and Psyduck are the first promo cards to receive reprints retaining their promotional artwork in an English booster expansion since the Mewtwo card included in the Legendary Collection expansion, nearly 24 years prior.