Galactusbuster is from an alternate Earth history and I am not sure if it is considered cannon anymore can someone please check for me on that one I will come back if it is. Finally the Endosym, my favorite of his armor and probably the greatest. Capable of draining virtually any form of energy once it finds the frequency. The real issue with it is that it has to drain slowely, and too much energy at once will cause it to open briefly to remove excess energy. This leaves the occupant vulnerable for a brief time though not helpless. Sadly superman is fast enough to capitalize on that weakness. All the suits real flaw is speed though, Iron Man's suites are nowhere near fast enough to keep up with the man of steel.