But yes to answer your question, you can run 5 shamans just fine. You may need to lower the settings from max settings to low settings for it to work in the high fps region, but it should work just fine if your willing to run at low settings. To put it in numbers, i run all 5 copies at 90 fps at low settings. When 1 is at max and the others are at low, i run at 25fps on the max and 50fps on the low settings.