Open the flood gates on 5/6 * shards
I feel like I should be getting a five star per week at this point in the game, and a 6 star every month. Without massive area grinding. It gets boring not getting new champs.
My suggestion is up the drop amounts on both 5 and 6 shards or lower the 5stars crystals to 5k and 6star to 6k. Idk just need more openings. People are getting bored with the game.