So, the Doctor hates war, news at twelve this surprises absolutely no one. However, he's not inclined to sit back and do nothing so guess who's choosing to get involved in the least battle oriented way he can? He'll be scouting and possibly trying to help get people who might be in danger out of the way because saving people, it's a thing he does you know. Be forewarned that he has a sonic screwdriver sword even if he'll hesitate to use it. And don't be alarmed if you also see Clara because they do have this tendency to run into each other.
Reyna on the other hand is going to be training with other shardbearers and drilling with natives because that's her favorite sort of thing to do and her duty as a daughter of a war goddess to do, to be honest. She might be on her pegasus a few times but probably not all the time? Enjoy having her help you train guys, there will be no messing around okay, because this is serious business.
TWELFTH DOCTOR ( unseelie ) AND REYNA ( seelie )
Reyna on the other hand is going to be training with other shardbearers and drilling with natives because that's her favorite sort of thing to do and her duty as a daughter of a war goddess to do, to be honest. She might be on her pegasus a few times but probably not all the time? Enjoy having her help you train guys, there will be no messing around okay, because this is serious business.