So I'm just about done with Hero mode. Just need to beat 6-11 (which is nearly impossible). I don't know if it is a bug but the phoenix shots his fireball over all my units and kills lord magma. IDK kinda irritating. I also did some calculating and come to the realization that I need 64 Soul stones to finish upgrading all my units. I've figured out that I can only gain 14 more soulstones (6 arena, 2 endless and 6 campaign). So that leaves me just shy of 51 soulstones to complete the game with no means to do it. Am I the only one who see's what is wrong with this picture?