Talk:Challenge Booster Pack/@comment-180.74.157.107-20170415094735/@comment-31574269-20170415112125

In your case you should probably not buy the Challenge Booster Pack. At the point where you are in the game your goal should be to create a team of Elite 7 Level 50 characters for every character quality (Bronze, Silver, Gold). This will allow you to complete more of characters' Challenge Modes, which allow you to directly promote characters better than those available in the store. I would you suggest you start to buy packs after you have done this, as this will mean more characters for more teams to grind for credits.