Here’s why this big guy is important.
Warning: Spoilers from theHouse of the Dragonseason 1 finale are discussed in this article.
As war looms, the Blacks consider their allies, both human and dragon.

The dragon Vermithor snarls at Prince Daemon Targaryen (Matt Smith) in the ‘House of the Dragon’ season 1 finale.HBO
This dragon is not named in the context of the episode, butHBO confirmed on Twitterthat this is Vermithor.
Vermithor, dubbed the Bronze Fury, is almost 100 years old, according to George R.R.
Martin’sFire and Blood, on whichHouse of the Dragonis based.
Vermithor is a beast, sure, but he also has the potential to be a political play.
The question is, who will ride Vermithor?
This plays into the concept of dragonseeds, essentially the bastard children of Targaryens though it’s more complicated.
It seems like the presence of Vermithor is heralding the arrival of Ser Hugh inHouse of the Dragonseason 2.