When he perceived the mana fluctuations of Lux, Jason's immediate reaction was to sense it again.
They were transmuted to an extent that it took him a while to recognize them.
Nevertheless, after confirming that they did, in fact, belong to Lux, Jason couldn't help but have one thought in mind.
'Should I assassinate him right now, and leave directly afterward?'
This would be, by far, the best thing he could do in order to soothe his rage fueled heart.
However, at the same time, Jason couldn't help but feel that this was wrong.
There was no reason for him to kill Lux, except the fact that he had shot at him 10 years ago. As such, it was evident to be angry, but was that really enough for Jason to fly towards the Shiman camp, and assassin someone over a decade old trivial conflict?
In the end, Jason felt that actively searching for someone to kill at sight, and meeting on a battlefield as foes was a huge difference.