My issue with not allowing MR is that my friend Jordan would not hesitate to shoot Purple Sun through any size unit and I'm sure that if I took less than nine ogres, he would just line up multiple units. I understand that it's in the rules, but having a death Mage ride around finding the best angle to shoot the vortex down my lines is not fun. When that mage also has a power stone to make sure he gets it off is even less fun. This isn't about Death Stars, it's about not being able to kill off an army with one spell.