Suppose they added a feature where you can un-craft cards at any time for a full refund in sparks, wouldn't that take away the aspect of collection? As you would be able to temporarily have any cards at the time they suited you most?
They could make it so that feature can cost gems to use.
They will never let you get back the sparks you used to craft them.They expect you to buy the cards your wanting, and even then its pot luck.. but then you gain the sparks you need to craft what you want. To trade in a card for sparks, is bad value as it is.. so the card has to be pretty useless to do that. If you decide to only play as a certain Hero, or to only be a zombie. Then I can understand why you want to recycle. But otherwise, your find those cards could be useful as the game evolves..
Personally I really wish cards would craft down for half of the cost it takes to make them rather than a quarter(and rares decrafting for 50 is ridiculous, that's less than 25%). Especially as F2P, but even for P2P, it is very hard to get the cards I need when decrafting 4 legendaries gives me just one that I want. Even a third of the decrafting cost would be appreciated
