Does anyone know if you can have more than one dragon mount? Like having a shout to call a default brown dragon and another to call a legendary dragon, or a frost dragon. If you're only allowed one dragon mount, can you change the mount you have from a crappy one to a better one you find, and if not can we "upgrade" the dragon, like putting armor on it or teaching it shouts that you know and it doesn't?
What do you guys think?