For those who've watched digimon savers you must have heard this song played when the digimon digivolved to ultimate/mega level. I think the first time it was used was in episode 30 "Masaru's Captured! The Holy Capitol's Trap!"

I've search through so many sites and not one has even mentioned it once. I don't even know the title of the song. Does anyone have any information on this phantom song!!!

P.S. It's definetly not "Believer"

they don't digivole to anything in the episode you listed so i can't help