Once again a new event/challenge/feature is added that I cannot participate in. It doesn't matter that I have been here since the game began or have spent cash enjoying and leveling the characters I like because apparently.....this game wants to dictate to me what characters I have to spend valuable time and resources on.
You have made leveling characters very hard, complicated and time consuming...I accept that but to now force me to level other characters I don't have any interest in, to get more resources for the characters I actually want to play, is not going to make me spend more on the game, it is going to make me drop it for a game that does not dictate to me how I have to spend my time and game resources.
Characters should be the option of the player and your events/challenges should be playable across the board. The only thing that should keep me from being able to participate is the over all level I have worked toward. No matter what character it is on. I simply will not use energy or credits on characters I don't want to play. I can barely manage to level the 7-8 characters I do play without being expected to use those resources elsewhere.
Please rethink the character restrictions you keep adding to the game. No one has time to level 45 characters in anticipation of whatever new feature you add.