The question of why only Eevee has such unstable genes has still not been solved.
イーブイだけが とても 不安定な 遺伝子を 持っている 理由は 未だ 解明 されて いない。
Release information
This card was included in the Hidden Fates expansion, first released as one of the Japanese SM-P Promotional cards. In Japan, it was available as part of a Pokémon Card Friendly Shop campaign starting January 11, 2019. Participating stores designated Pokémon Card Friendly Shops gave this card to customers who purchased at least ¥900 worth of eligible Pokémon TCG products. The campaign ran for as long as stock lasted. This card features the Pokémon Card Friendly Shop campaign logo in the bottom right corner of the artwork.