Sir Gwaine, Merlin’s Knight.
From Jadedginger’s ask, explaining “Merlin’ Knight”:
"I always felt like if Merlin ever had a standard, it’d be blue and silver. I was going to change the wyvern to something else. But that seemed silly to me. Merlin is a dragonlord, he would have had a dragon on his standard anyway. PLUS. It seems like even if Arthur wanted Merlin to be a Lord with his own colors and standard I think Merlin would still want the Pendragon dragon. Arthur will always be his King. What better way to show it than to use his wyvern? Even so. Merlin thinks the whole standard and Lord business is mad and silly. Gwaine would agree with him. Until he realized that this was a way to show the word that he’s Merlin’s Knight. His protector. That Gwaine would go to the end of the world to protect his wizard.
Anyway, that’s how my Merlin’s Knight AU works. It’s not canon. It’s like writing a fic with graphics. It’s just a bit of fun.”