Saying that book Rhaenyra always had an arc of "going mad and incredibly cruel" is how I know that you either did not read the book or if you did you have no reading comprehension and take things completely out of context:
Was Rhaenyra the one that first turned against Addam and Nettles? No, those were voices on the black council. Did Rhaenyra call bastards treacherous by nature? No, that was Bartimos Celtigar. Did Rhaenyra want to seize Addam and Nettles? No, that was Bartimos Celtigar, followed by several others: Luthor Largent, Lorent Marbrand, Medrick Manderly and his brother Torrhen who all "urged the queen to mistrust". Did Rhaenyra act at once even after 5 men urged her to seize them? No, she called for Mysaria, who actively fuels her paranoia. Can we be certain that's what Rhaenyra truly said/responded? No, that's what Eustace writes she said.
"Rhaenyra always had a tyrant arc" except she didn't, not if you actually read with your eyes open and your brain functioning.
