Thanks for trying the game. I guess I should draw more portraits then.
I've made like 3 different tutorials by now I think, it's definitely one of my weak points. Most of the information you are looking for can be found at the encyclopedia (the red book in the main hall). It contains individual entries for every enemy you have defeated so far including stats, skills and a little bit of lore, but even this information is a little outdated.
Goons are a bit problematic since most of them are weak on purpose to serve as early game enemies. Ironically, it's easier to design more interesting units. 
Thanks for the bug reports too, I always overlook stuff like that. Also, the damage you were taking in the desert wasn't from the terrain but because you were fighting a walking cactus and touching them hurts.