[PvK]

Several nations have expensive and strong holy units that you can only afford 2-3 per turn anyway at first. I could see some of them being quite tough units with a bunch of blessings on them.

Jotunheim, Vanheim, Ulm, Man, Machaka, Marignon, etc. have powerful units that even if only built a few per turn, stacked with blessings, can be very strong.

PvK