A slightly longer post on Clerics in regards to Ring of Expertise and Ring of Quick Prayer.
The current "optimal" Cleric build for rings is:
+5 ring of focus
+3 ring of focus OR Ring of Spell Storing
Charm of Glory -> Ring of Spell Storing or +3 Ring of Focus
If you aren't doing legendary tokens, that bumps the optimal config to +3 ring of focus and ring of spell storing. Tracking down the Greater ring of Focus is a game of patience. There are usually only 1 or 2 available on the market (Trent, TD tavern, Forum stores) at any one time, and getting one for sub $400 can be a challenge.
Ring of spell storing is near relic price at this time. My guess is I could track one down for 225 if I really tried and was given enough time, but I wouldn't call it highly available or anywhere near PYP prices.
Finally, you could go dig up a +1 ring of focus for a little more than PYP prices, but I'll bet if 5 clerics all went looking for them, at least 1 would come up empty.
So what does that leave a Cleric ring wise? Mostly level, melee, and save boosters, or the +1 dex / str rings. Not much there to actually reinforce the cleric theme.
So, if I were a new Cleric, not really willing to jump in on $300+ tokens, I would probably team up Ring of Expertise and Ring of Quick Prayer.
This allows a few strategies, assuming the following:
Ring of Quick Prayer does not allow damage spells
Ring of Expertise does not allow healing spells
The options with both rings:
Party buff and combat actions (best used room 1 to save prayer):
Cast Bless as a free action and use expertise to not mark off bless. Slide to attack
Slide remaining rounds.
Ranged Combat option 1) (best used if out of prayer)
Cast Spiritual Hammer with Expertise, Mark off Bless as a free action
Mark of Spiritual hammer, restore power as free action
Cast cure light wounds as both standard and free action
Ranged Combat option 2) (prayer availble)
Mark off Prayer, Mark off Bless as a free action
Cast Spiritual hammer with Expertise, restore power as free action
Mark off Spiritual hammer, maybe cast cure light wounds as a free action
The Combat Healer
Mark off Prayer, cast Bless as a free action and use expertise to not mark off bless.
Mark off Cure Serious wounds, Cast Cure Light wounds as a free action and use expertise
Mark off cure moderate wounds, mark off cure light wounds as a free action
Mark off cure moderate wounds, cast cure light wounds as a free action
There is a lot to think about in these actions, and it's similar to using the relic, just a little less powerful. It also gives rings a very cleric vibe instead of just using the slot for +2 melee damage (ring of frost) and, say, +1 str. You can also (thankfully!) ignore trying to stack enough dex to throw a hammer - you can get 2 casts of Spiritual hammer in one room which is probably sufficient to not feel useless.