Perfect World VR (191) : Capture the Flag
Thus it was no brainer at all that after some thought Elena decided to keep to the temperature that would lessen the pain of an attack and make the deaths of her fellow cadets more humane while fighting.
And even though it was clear for all to see that she felt anger toward the ax-wielding cadet and his comrade, both of whom had tried to use her as a trophy to add to their list of achievements, she was still willing to grant them a quick death, not because she was merciful but because she found it a drag to drag out their punishment especially when she has other targets to get rid of.
Unlike the time with Pablo, they wouldn't allow her comfort so easily after all thus making their deaths quick so as to move on to the next target was the best way to go about her business and that was exactly what she did.