The issue with healing as I see it, is that the presence of a cleric basically shifts the group from a slower-paced recovery rate over the course of a day, to better spike recovery. You don't actually get any more healing surges in the presence of a cleric, you can just use them more rapidly when needed. It's like robbing Peter to pay Paul.
This doesn't seem right to me. I would prefer it if a cleric actually allowed you to heal more, instead of just reallocating your healing surges. (Okay, there's the extra hp healed from Healing Word, but how significant such bonuses are beyond 1st level remains to be seen.)
The problem then becomes, how do you keep a group from being able to fight all day if they have a cleric. Well, assuming this is a problem (some think it's not), you could tie healing more closely to the actual damage being dealt. A similar problem exists in the current setup anyway; while Healing Word is ostensibly a per-encounter ability, out of combat you can use it almost any time you want, which seems a bit cheesy.
How does this sound:
Word of Protection
At will
Immediate action
Target: you or 1 ally
Effect: the next 5 points of damage the target takes before the start of your next turn are negated.
This is effectively pre-emptive healing for X points of damage (cast it just before the orc's battleaxe hits), but is useless out of combat, thus avoiding people getting too much mileage out of it. Maybe change to twice-per-encounter like Healing Word if it's too powerful.
This doesn't seem right to me. I would prefer it if a cleric actually allowed you to heal more, instead of just reallocating your healing surges. (Okay, there's the extra hp healed from Healing Word, but how significant such bonuses are beyond 1st level remains to be seen.)
The problem then becomes, how do you keep a group from being able to fight all day if they have a cleric. Well, assuming this is a problem (some think it's not), you could tie healing more closely to the actual damage being dealt. A similar problem exists in the current setup anyway; while Healing Word is ostensibly a per-encounter ability, out of combat you can use it almost any time you want, which seems a bit cheesy.
How does this sound:
Word of Protection
At will
Immediate action
Target: you or 1 ally
Effect: the next 5 points of damage the target takes before the start of your next turn are negated.
This is effectively pre-emptive healing for X points of damage (cast it just before the orc's battleaxe hits), but is useless out of combat, thus avoiding people getting too much mileage out of it. Maybe change to twice-per-encounter like Healing Word if it's too powerful.