The Wancan berries are a form of berries. They are incredibly powerful and look like a pacifier. Pilqis became Pilqis by eating a large sum of Wancan berries. This is part of the PCU, or Pilqis Canonical
Universe. These are also berries availble in
Pokemon, however are not as powerful as in the Pilqis Canonical Universe, where Seymour Green and Pilqis consume them frequently and become incredibly powerful as such. Some images depict
buff Caterpies and Magikarps that are quite nightmarish consuming Wancan Berries and defeating many opponents. The Wancan berry is the item held by all members of Pilqis's Blissey Sweep
Team.