I remember, the first time I played as Agraine, I ignored stealth, gathered an army, and nothing good came of it:D Although, she can't handle some opponents on her own.
And you don't need to defeat everyone there; you need to find artifacts. By the way, this is more interesting: waiting, ambushing the enemy, operations behind enemy lines:D
I also love the blinding ability, but griffins also have a good ability (they respond to all attacks). And they can fly.

Барон "Vampires"
Отдай свои прошлые сны,
В сомненьях себя обрети,
В бешеном танце душа кружится!
Не думай, что будет потом,
Здесь и сейчас мы живем,
Стань хоть на миг сам собой, слышишь!