May I suggest to have random character awards instead of fixed character ??
2* cap for example : 2* cap now fixed to award 3* cap and fixed to award 4* winter soldier
We have less chance to get another characters
Suggest to have random character awards in order to increase variability.
They have that too. The tokens drop random character covers. 
I think you’ll find that the guaranteed covers for some of those older, harder to acquire 4s can be welcome if you’re trying to “catch em all.” I think the real fix is to get rid of the multiple 3 feeders going into marginal 4s, and make it so there are more 4s fed by 3*s
The guaranteed nature is by far the best thing about specific covers from champ rewards. It’s unfortunate that not all are represented but that’s not reason to kneecap the whole system…