After losing a territorial struggle, Wooper began living on land. The Pokémon changed over time, developing a poisonous film to protect its body.
縄張り争いに 敗れて 陸で 暮らすうちに 毒の 粘膜で 体を 保護するように 変わった。
Trivia
Excluding cards with generic or plain white backgrounds, this is the only card illustrated by Saya Tsuruta to not feature a hidden image of a Poké Ball in the background, which is a signature of her Pokémon card illustrations. In an apology, Tsuruta mentioned that the Poké Ball in this card had "rolled off the frame".[1]