Does 10 damage times the number of Energy cards attached to the Defending Pokémon.
Devolution Beam たいかビーム
Choose an evolved Pokémon (your own or your opponent's). Return the highest Stage Evolution card on that Pokémon to its player's hand. That Pokémon is no longer Asleep, Confused, Paralyzed, or Poisoned, or anything else that might be the result of an attack (just as if you had evolved it).
So rare that it is still said to be a mirage by many experts. Only a few people have seen it worldwide.
いまでも幻のポケモンといわれる。その姿を見たものは全国でもほとんどいない。
Release information
This card was first released as a Non Holofoil Wizards Black Star Promo through the Pokémon League starting January 8, 2000. This print has the collection number 8. In Japan, it was included in the Mystery of the Fossils expansion as a Holofoil card. It was reprinted as another Wizards Black Star Promo, this time Holofoil and with the collection number 9, and was available through the Pokémon League from April 2000. In Japan, a glossy version of the initial English print was included in the May 2000 issue of Gotta Comic, released on May 1, 2000.