When the Shavepate had commanded the Brazen Beasts, he had favored a serpent’s-head mask, imperious and frightening.
It's also a reminder that Carson, as lovely and big-hearted as he is, is used to being imperious; in fact, it's his job.
He was very imperious and intimidating at first.
Thunder in literature is mostly figurative; characters, angry or imperious, thunder their lines all the time.
As well as scoring a crucial - and rare - goal the Swansea captain was also imperious defensively, making several important challenges.