Overall game improvement. Seems like a no-brainer..
Add more content for lower star champs. Kabam removed the ability to sell champs, and still has thronebreakers getting low tier resources, yet they don't add any content to use lower star champs?
Give us a reason to get excited about opening PHCs.
Give us a reason to use our low tier catalyst and resources.
Make our whole roster usefull.
It would rekindle and revamp the game in an easy and positive way. Seems like a no-brainer to me.