1. Increase the value of boxes for earth, air, 4lvl and 5lvl up to 20K (based on the principle of control scrolls).
2. On the mirror-diamond template, limit the value in zones up to 20K so that relics and other imba items aren't generated on the ground. If possible — limit the number of Dragon Utopias in 1 zone to no more than 1. This could potentially result in the most magnificent template.
If there is a desire to play mirror against AI and without relics on the ground, it's better to just draw a new template.