The strongest hero.

Omnipotence is an absolute, not a relative, concept. Either you can do everything, or you can't do everything.

In this context, "omnipotence" is equated with "omnipotence." Askh also cannot do everything, but she is still called omnipotent.

And, let's say, I understand why you can't compare Kha with Askh or Urgash. But Sar-Ilam, by his own human strength, with his own, most ordinary mind of an ordinary mage, made himself a Dragon. Why can't he be compared with Kha, who initially possessed much greater power, given to him by Urgash himself, but in the end turned out to be nothing compared to Sar-Ilam?

No one knows how it happened that Sar-Ilam was suddenly given immense power (it was given to him, he did not create it himself). However, it is well known that Askh was in love with Sar-Ilam. But this is just another guess. But still, why compare Kha-Belekh with a dragon, even if it's not an original one? At that time, Kha-Belekh was just an ordinary archdemon.