There are certain domain powers, such as Acid Dart from the Earth domain or Lightning Arc from the Air domain (among others), that deal direct damage. The wording for the damage they deal is as follows:
"1d6 points of X damage + 1 point for every two cleric levels
you possess."
Does this mean that for every two levels, the damage is increased by 1d6+1? That would mean a progression of 1d6+1 as a first level cleric, 2d6+2 at second, 3d6+3 at fourth, et cetera. I feel that that would be quite powerful if it were the case, as a 20th level cleric would be dealing 11d6+11 damage with a power they can use quite often.
The other option seems to be that one point of damage is added on for every two cleric levels, instead of a full 1d6+1. This would result in a progression of 1d6 as a first level cleric, 1d6+1 at second, 1d6+2 at fourth, etc. This damage seems very low, totaling 1d6+10 at 20th level.
I'm just wondering what other people, having read the description of the domain powers, have decided to be the case. Honestly, I would hardly consider using the powers if the latter is the case, but the former makes them seem incredibly powerful.