Yeah, i use holy light in fights with 5+ enemies and items in boss fight (beat the thigh queen in less than 1 minute). There are some way to earn money (eggs & milk) but it pain in the ass and i'm afraid the chicken may die (since the game so random).
Btw, you did very good with the art, i played a lot of this style of game but yours is stunning than some big companies. Did you buy the RPGM packs or you draw them yourself (the buildings, the maps, etc..) ?