The problem is none of that stuff has really done anything that impressive in the movies.
As for the Bifrost, it's powerful but the Kryptonians have their own planet "destroying" weapons. The World Machine can crush Asgard in minutes and I can't see how the Asgardians would be able to stop it. By contrast Supes can likely shatter the Bifrost.
It BFR'd Red Skull and Thor/Loki used it to return to Asgard.
__________________ posted by Badabing
I don't know why some of you are going on about being right and winning. Rob and Impediment were in on this gag because I PMed them. Silent and Rao PMed me and figured I changed the post. I highly doubt anybody thought Quan made the post, but simply played along just for the lulz.
Isnt Asgard like a floating island? The world machine worked in conjunction With Zods ship bouncing gravity back and forth from each side of the planet as the process to terraform the planet. Once the world machine was taken out the effect stopped so it most likely needs both sides working to function right and given the size of the land mass in question (Asgard) it might not really be useable.
What about the destroyer armor? What can the kryptonians do to that lovely walking fireplace?
As far as the cosmic cube goes, by only going by the uses we have seen from it then Loki with the staff could make all the difference.. Corrupt Zods heart along with some others and then we have infighting amongst the Kryptonians while they try to lay siege to Asgard.