Alternative Cleric Turning
Hi,
This is my take:
Greater Turning is usually useable once or at a max of 3/day. Make the d6 into d10 for that Turning.
Improved Turning out of PHB adds +1 Level for Turning Only. Add +1 to the DC.
Empowered Turning should be d6 to d8's. or a Class Feature or a...