Ciel was surprisingly easier than some of the recent leaders, for me at least. My swampert dealt with her archeops, gliscor, talonflame, and altaria, while my gardevior dealt with her togekiss and noivern
In order to get a murkrow with brave bird, you need a female murkrow and male starly/staravia/staraptor that knows Brave Bird. The result should be a murkrow with brave bird. To answer your question, yes, the starly needs to know brave bird in order to pass it down
Load your save file in episode 14, go into any building and save. I believe on the download page, Ame said not to be outside in Reborn City when opening the new episode
It may have forgotten the move after the egg was generated, in which case the egg would have the move, and Golduck would end up losing it. Out of curiosity, what moves is your marill hatching with? It might have four egg moves so it can't get aqua jet.
Make sure the egg move is not at the top of your move list, as the moves at the top will be the first to get deleted when you level up in the day care. This may have something to do with the egg not getting the move. Although, that should not be the case if the day care has gen 6 mechanics
I actually don't think that will happen because magmortar and electivire are unavailable. If we were going back, we would be able to access the magmarizer and electerizer from the department store. There will probably be a razor claw lying on the ground somewhere
Considering that you're locked out of the Pre-Agate area, you don't have that many options. You can train in the route 2 area where you are now, and you could try entering Ametrine Mountain from the north end of the route. The mountain might have a few higher leveled pokemon
The Tropius Request? What part do you need help with? There's a tropius standing in the middle of the forest. After talking to it, you have to go into the house in route 5
You have to talk to the guy inside of her gym, then go back and speak to tesla, and then go back into the cave where you entered the town from and proceed to the top