How stars function and the payment model surrounding them is the only problem with packs. How to resolve this is unclear.
Possibly boost the 12 shards to a higher amount based on if you own the character and the current star level on it.
Or allow us the opportunity to farm for any character we open.
Or a shard exchange that's at least 2:1.
Something has to change honestly...
I love this game but I wish I could strategize with all the characters in my box, not just the ones at high stars.
If shards from packs were only responsible for unlocking characters and not advancing them as well I'd have much less of an issue with them.