the game is overall very well done but the one main complain that i have is that the last level is way too hard that you have 4 or 5 mechs attacking you and is almost unlikely that you can dodge all their rockets and gauss rifle shots
you screwed up the healing with the priests man. before it world go through everything but now when i have my 2 priest out they heal themselves instead of my other guys. you have to fix this
to beat the 5th cave of trial follow the walkthrough but dont use fure succubus or magic cannons because they can send the invisible goblin flying behind you. Also never use pheonix because it would do the exact same thing