Cover Saving

Unknown

With 5*, selling a cover when one color is full but the other colors have 1 or 2 is pretty horrible feeling. Can we get a way to save a select few covers for a longer time than the 14 days? Like pay 1000 HP for 5 comic cover protectors which can keep the covers safe longer. That way the feeling of getting a 5* color you don't need, can be put for safe keeping until can champion and use it then. A new way to spend HP and make getting unusable covers less of a heartbreak.