She most likey TP Karma herself a psi bolt or seal her powers
Pandora Ikaros should be multi continental to near moon level by scaling. Chaos absorbed the cores of 47 melans android and fought Ikaros with it. Each individual melan power > Ikaros' core before she reached Pandora mode. Ikaros before Pandora mode destroyed nearly 10 islands on Synapse large enough to carry mountain ranges with way more space on the island. This is all we seen could have been more. She did this with her weakest weapon and while malfunctioned.
Nymph, who helped stopped Ikaros destroying Synapsed stated she had the power to vaporize Japan. Ikaros was once again weak in that showing.
Pandora Astraea should be stronger than Ikaros and completely surpassing her when she reached Pandora 2.
Ikaros should be FTL considering she's faster than Pandora Astraea, who was flying off photons. The photons in SnO are natural even Astraea sword is made out of one. Pandora 2 Astraea is even faster than Ikaros.