Too easy.

I don't really get why you would need 150k starpower unless you want to like fill a mirror island with star rocks

I could've sworn that 2 billion was the coin limit

Why would you need 5 million shards tho? Feeding a tribal island? Just get the starpower one then!

Relics and Keys are more required but diamonds are literally just better, keys are mainly optional except the dipsters

^ 2 million was never the limit, it was the display limit, but they eventually changed that in around 2022.

Me need starpower