Faith based praying is perfectly acceptable. That's the short
answer. Like you said, however, you need to take into account
you are putting text right square in the eyes of every Immortal
who is on. Every immortal reads every pray that comes up. If
you pray too often, someone up there is going to get annoyed.

Apply some common sense:

Praying because you made some bread to eat with your Lord's powers?
No.

Praying because you smacked down 4 Imperials at a pair of Centurions?
Go for it!


Grurk