I know that RisingStar is a projekt run by developers in free time. They can´t do so much money from it as they put time at this game. I also can see that if the game gets more money in - they can give more money out - in weekly reward.
I tried to explain an idea at Discord but here it is in longer text.
Weekly Contest Idea
Make a special card called "Music Quiz" or something like that. A card you only can win in this special Weekly Contest. That will make people to join the contest.
The weekly contest can be same contest every week. Like "what is the price of Bitcoin 5 days from now" or so. I know that some others have similar contest.
I know that RisingStar is for music so maybe a musiccontest.
Why same question every week?
Because I know it takes time to make contest. But if you have same question and same price it is more easy to publish.
How will they earn more money?
Upvotes...
Or delegation....
Or - delegate 100 HP in at least 30 days and get a special card. That will also make them grow faster.
Burn and win contest....
You need to send 5 common cards and thoose will be burned. The winners get a special card.
OR something else
Well, I think you got the point. Like Splinterland and some other games use the Hive-blogg platform to generate more money to the game by upvotes.
Keep on Playing