EX Hidden Legends Feebas is receiving errata for its "Ascension" attack to bring it in line with the Japanese version of the card. It should read, "Flip a coin. If heads, search your deck for a card that evolves from Feebas and put it on Feebas. (This counts as evolving Feebas.) Shuffle your deck afterward." Please note that this only affects Feebas; Vulpix's "Ascension" attack does not require a coin flip.
Source: PUI Rules Team (2004-07-22)