There is a slight flaw in @foxon's app. Indeed, it gives the number of fans of a card without however associating it with the number of skills. This can be annoying when making purchases because the price is not really that of the fan, you have to check on another market the complete card statistics. For this to be valid, it would be necessary to list only the cards of the market having only fans, or only skills, or only lucks.

I am currently doing a series of posts on Rising Star where I develop certain notions apparently still misunderstood by many players, old or new.

You can take à look to my blog .
For me, it is better to buy cards on the market. The purchase of packs is done at certain times and not systematically.