Daemon realizing Viserys NEVER truly considered him an heir.
As soon as the kids volunteered to go deliver the messages to the other families, I turned to my lady and told her pick which one was getting bodied by the end of the episode. Children going to do grown folks' job is in the same category as being a few days away from retirement/overdue vacation/transferring to another department in old action movies as far as near guaranteed death.
I love that the bridge scene was a nice inversion of the first bridge scene between Otto, Daemon, and Rhaenyra. Otto showing up with the page from the book definitely drove home the point of him being an emotionally manipulative motherfukker.
Next season' fukkery should be off the charts, and I'm all about it.