doomsday is not even getting past the first form of Onsaught. The only reason why anybody thought they had him on the ropes in the saga was because he wanted them to think that. He was stalemateing Savage hulk on purpose to make him angry enough to break his armor like he wanted him too. Their were so many ways onslaught could have killed him and their are a lot of ways he can kill doomsday. Normally Onslaught walks all over doomsday. However with the team the first form isn't enough. Second form (with FR) changes them all into little girls, if FR can make a poket universe Onslaught can make this team into Old ladies that are playing bridge.