After an insignificant stint with CA Osasuna (then in the second division) and a season with neighbours SD Eibar (same category), Descarga played eight seasons with Levante UD, where he would be one of the side's most influential players, helping it achieve promotion from the third to the first level.
Following the Community of Valencia's outfit severe financial crisis during 2007-08, Descarga was one of many players who would leave, joining Legia Warszawa in August 2008. There, he teamed up with another Osasuna graduate, Iñaki Astiz. He debuted for new club on September 2, 2008 in a match against Polonia Warsaw (1-1). In Ekstraklasa he made debut eleven days later in match against Arka Gdynia (2-2).