Cultivation Is The Answer
That would explain how it received all this damage and didn't crumble or even crack. If this shield was an artefact, then it might have a formidable source of energy or it could have another ability; damage absorption.
I had a skill that could do something like that. Of course my shield skill could only send half of the damage received back after absorbing it.
So this shield might also work in a similar way, more advanced than my shield skill.
To take this shield down, attacking it wouldn't do any harm. I had to find that bastard and start aiming at him.
He didn't appear at all, making me feel he must have listened to the story of that paragon from before.
But as the shield was active in such a way, that meant that dude wasn't that far away, right?
I just hoped he wouldn't have another weapon up his sleeve. After all, when I fought that paragon before, he had that damn suit that protected him for a long time against my attacks.