How do you quickly raise Heartless from 2 to 7. I know there are way to raise Heartless really high, but I only need 7 and I want to know if there are any ways to do this efficiently.
The "She’s Going Down!" card on the zee can raise heartless for you(up to 10, if you ever need it to go that far after you are done…destroying yourself), this is probably the best way and it’s not as slow as it sounds but it may take you a little while if you are very unlucky.
edited by The Master on 11/22/2016