“The Black Queen,” Sunday’s Season 1 finale of HBO’s massive hit “House of the Dragon,” didn’t lack for ambition. The episode had an extended, midair dragon-on-dragon chase scene, the third(!) harrowing birth/death scene in only 10 episodes, the untimely death of a young character, and Seven Kingdoms on the brink of war preceded all season by character scheming, time jumps, and the prolonged leprosy spiral of King Viserys (the great Paddy Considine). He finally rotted off this mortal coil in Episode 8.