two balance issues, a) if you increase any consumption builings output it automaticly increases the required resoures as well. (example double the steel output upgrade also doubles the iron requirement) 2) you need a penelty for not having enough of the raw resource, as it stands their is no loing in making more then 1 Iron mine and just maxing out steel Since steel sells for 4x the value of iron I will happy go in debt $1 a second to get $4.
I think the healing cowl is bugged, it would take a hero having 500 HP to even get 1 hp a round of recovery? Should this be 2% not 0.2? alternatively make it a flat "recovery time reduction similar to other relics.
Building idea, Alters to each element (earth/fire/air/water) that grant bonus treasure/%fine rate ect to dungeons corsponding to their element (fire temple/ Fire dungeon ect)
 "Spidle Tridle"){kind=icon}
 "Idle Adventurers Guild Master"){kind=icon}