Blue crystal

Good edits, but I'm sticking with the previous version for now. I found a good save after the third pair of battles; I managed to complete it and destroy the demon portal the day before it appeared. Now, that tough demon from the fourth pair won't be there. The enemy in the fourth pair is weak and easily defeated by hit-and-run tactics; I might even have time to destroy the portal as well. I would suggest not weakening the enemies too much, but rather moving the Utopia/Mage's Treasury closer to the city, even if it means stronger guards and a scripted reward instead of random artifacts, so that only spells are awarded. Currently, the main difficulty lies in the random nature of the spells, which is almost impossible to fix.