Hi, everyone.
I have a Maester wiith the attachment Dragon Fear (If there is at least 1 Dragon character in play, attached character must be chosen to satisfy Military claim, if able.) and Leyton Hightower (Maester characters you control gain: "immune to opponents' events and attachments."). I lose a military challenge and there is a Dragon character in play.
Do I have to choose my Maester with the Dragon Fear to kill for claim?
I believe so because Hightower doesn't blank the attachment and the immunity he provides is blank in this case because the attachment is forcing the controller to kill him by a rule's effect: claim. It's the game killing the maester, not the attachment. I think this because of the similarity of Pyat Pree being able to kill character which are immune to character abilities.
Thanks for your time.