I have a shiny card that looks like this in English and I was wondering how much it is worth:

Text:
Vaporeo LV.48 HP 90
stage !: evolves from: Eevee

NO.134 Bubble Jet Pokemon HT:3'03" WT: 63.9lbs
poke-POWER: Undevelp
Once during your turn(before your attack), you may devolve Vaporeon and put Vaporeo into your hand. This power can't be used if Vaporeon is effected by a special conition.
Muddy water 20
Does 10 damage to 1 of your opponet's benched pokemon(don't apply weakness and resistance for benched pokemon)
Evolving Aqua
Choose 1 of your opponet's pokemon that has any damage counters on it. This attack does 40 damage to that pokemon. (don't apply weakness and resistance to benched pokemon) If Vaporeon evolved from Eevee during this turn, this attack does 60 damage instead.
(eh, found an english version, all typos have been listed and outer is shiny.)