zoe's guide has a lot of tips on boosting your stats using sourdough and the trainers, which can be used to give significant boosts to whatever stats- she is planning to update it more, but since her last update i've added a few pieces of armor that drop, the aliens in particular drop an "Energy Barrier" that depletes MP instead of HP which can be useful along with the MP restorative they drop- if you select an alien to start these will be in your inventory at the beginning. i still need to add more kinds of equipment but for now that might make it slightly easier at least.