In your opinion, which hero has the most charisma in the campaign?

Who did he instill fear in? Who was afraid of him, besides Wier?

Then why did he live so long and cause so much trouble?

And these same dark deeds led to his downfall.

By the will of the creators. In general, he could have done a lot and maybe even won this war and defeated everyone, including the demons.

The jump is to send Biara into the Griffin Empire.

But that's just luck! If Isabel hadn't disappeared without a trace, they wouldn't have succeeded. In general, the creators really messed up here, showing a careless attitude towards the plot, because such things need to be clarified in detail.

If even Urgash with six lords was locked up, what chance did he have?

Then Urgash is a loser, and he is a loser too.

Yes, I decided to post a lot of messages :)