Was it using magic to control unmanned armored suits? Could the manipulators be those two people nearby? Impossible, while battling the suits, they were also fighting; they couldn't be distracted. Then, was it through the use of a clairvoyance spell or other observation magic to spy on the battlefield and operate from a distance? That seems unlikely too, as the murderous aura emanating from the armor was genuinely real, and indeed, one could sense the human heartbeat and breathing from within. Moreover, remote operation would inevitably have blind spots that could not be observed. To act freely, one would need a consciousness capacity dozens of times that of an ordinary person, which is very unlikely.
Scorpion methodically ruled out each hypothesis while remaining on guard. Just then, the armor made its move.