Ok so i love Merlin magic reveals but theres just something special about Merlin Dragonlord reveals
The ones where Arthur finds out and suddenly realises "HolyshititoldMerlinthathisownfatherwasntworthatearwhyishestillatmysideimahorribleperson-"
And i've seen several versions of this reveal and what the responses would be
But i haven't seen one i had in my mind
Just imagine this: Merlin grows his hair out ("no, gwaine, im not copying your hairstyle stfu-") and grows a beard
And Arthur thinks it's hot that he looks oddly familiar but can't place it
He tells tells Merlin this and Merlin sits there in cold sweat thinking Arthur is connecting him to Dragoon or something
It takes Arthur a week (A whole week!) to figure out who bearded Merlin reminds him of
They’re sitting around the fire on their way to a quest or whatever
And Arthur looks at Merlin who's attempting to carve what looks like a misformed dog from a piece of wood when Arthur suddenly gets flashbacks to that time The Great Dragon escaped and they went in search for the last Dragonlord.
Balinor. Merlin looks like Balinor.
And now that he sees it he can't unsee it. It's uncanny how much they look alike. Almost like father and son...
And that is how Arthur realises that he never defeated The Great Dragon and that Merlin is in fact the last dragonlord and "shitshitshitmyfatherruinedhisfatherslifeanditoldhimnottocryaboutit-"
Ignoring the fact that Uther believed that Dragonlords were too close to magic Arthur confronts Merlin about it, and promises him it's alright, it will all be alright. And Merlin can barely get out a word before Arthur hugs him, both of them pretending that Merlin totally isnt crying.
Arthur takes any books on dragons and dragonlords he can find and gives them to Merlin.
(Bonus points if Merlin lets Arthur come along the next time he summons Kilgarrah for help and Arthur promptly kisses Merlin after hearing him use that voice because 'holyshithessohotwhattheactualfuck')
((Even more bonus points if they adopt Aithusa together))