Suggestion : to avoid the clan boss key loosing
Aloha !
We all know that sometimes the game is not stable and crushes from time to time.
For me it happens rather often when I go to the clan boss section after having played some dungeons or arena. My guess it's related to the lack of available memory on the phone but I can be wrong - anyway this can be a challenge to prevent the game from crushes totally and it's understandable.
What is the most frustrating in this story is to loose every time the clan boss key. And here I have a question-suggestion:
Why don't you just register the clan boss key consuming under the same transaction that a clan boss battle result??? In other words, you need to remove the key not before the battle, but after it, at the moment when you register the result of the battle.
Please do it, I don't think this is too hard to change, and I assure you, many people will be grateful !
Cheers!