Board Thread:Fun and Games/@comment-26725931-20150927040215/@comment-7326455-20151005012039

KaiPax wrote: I haven't found a use for the coins we earn other than paying for the single element monsters. Everything else is paid with diamonds. And I don't see a way to convert coin to diamond.

Buying buildings, teleporting monsters to the Outer Islands. The buildings are expensive enough that I don't really seem to be stockpiling coins excessively.

I'm pretty sure "coming soon" means "wait for a future update" rather than "just level up some more".