How long is that? Yes, he lived a long life, but he ruled the Empire for only a few months, and only because he managed to raise 1000 skeletons and 20 dragons.

They could have overthrown him earlier. Plus, his army is many times larger; 1k skeletons and 20 little dragons are just an addition.

By the will of the creators, the Griffin Empire collapsed along with all its heirs.
He would not have been able to win; you yourselves saw that all his undead were finally buried, and he could only hope to escape. If Zehir's magic killed him, do you think demons couldn't have killed him?

That's logical. But if we're talking about the fact that he was lucky and the king of the Empire died, then he still perfectly took advantage of the situation and achieved his goal. And he was defeated by the beaver's forces only because it was required by the laws of the genre. And speaking of Zephir, he was one of those who made Kha-Belekh choke (by the way, he later defeated your Biara).

Ashan was lucky that Shio is a prison, not a free country.

Demons are cool, I don't argue. But you should never underestimate the power of the undead, because besides quantity, they also have intelligence.

And where does it say that luck helped? Yes, the creators didn't care about the plot. What difference does it make how Biara got on the throne? The important thing is that she got there. And, by the way, she held onto it much longer than Markel, and she did a hundred times more nasty things.

Still, it was luck. At least the fact that Isabel was so stupid and allowed Biara to take her place. No matter how you look at it, it's luck, and there's no arguing with that.