A series of Ship Challenges are available on a rotating schedule. These include:
Capital Ship Upgrade Challenges: Earn Capital Ship Blueprints in a Yoda style event
Can't redo the lower tier once done. As stated in the update notes it is yoda style event. Good news is that it shows 3 times a week.
Replies
I think those are meant to be done only once
https://forums.galaxy-of-heroes.starwars.ea.com/discussion/77803/game-update-11-21-2016#latest
Can't redo the lower tier once done. As stated in the update notes it is yoda style event. Good news is that it shows 3 times a week.