Is Pray able to be used every turn? This is very powerful PC protection, maybe lower it to one soul for both and have the upped cost 4
Pray is automatically used whenever your permanent is being destroyed.
The souls will not refill up every turn.
It is basically a Bonewall protecting your permanents (without a way to gain more souls), right?
Yes, its like a bonewall. there is no way gain more souls.