You won't be able to earn money in FarFantasy
I have already sold all the cards that were purchased. Fortunately, I sold it without loss. 
The project was able to implement someone else's idea, but did not learn how to play marketing.  
In addition, the economy of cards is based on the number of holders, and if the team does not know how to build marketing, then there will be zero holders. 
My opinion is that if a project borrows someone else's idea, then it will not succeed like the original creators.