I don't seem to recall any spells that give a certain amount of healing over time. So, I tried to come up with one. Not sure the level is right, though. If anyone can point me to anything that's like this (besides the Inquisitor's Healing Judgement, which is the basis for it).
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School conjuration (healing): Level bard 1, cleric , druid 1, inquisitor 1, oracle 1, paladin 1, ranger 2, witch 1
Casting Time: 1 standard action
Components: V, S
Range: touch
Target: creature touched
Duration: 3 rounds + 1 round per two caster levels
Saving Throw: Will half (harmless); see text
Spell Resistance: yes (harmless); see text
When laying your hand upon a living creature, you channel positive energy that bestows fast healing 1 on the target. This causes the creature to heal 1 point of damage each round as long as the creature is alive and the spell lasts. The amount of healing increases by +1 point for every three caster levels (maximum +5).
Since undead are powered by negative energy, this spell deals damage to them instead of curing their wounds. An undead creature can apply spell resistance, and can attempt a Will save to take half damage.
Thoughts?
Cure light wounds heals a maximum of 13 points at level 5, with an average of 9.5 per casting.
You spell spells 10 points at level 5. Now, I understand that this is more because you are sacrificing HP all at once to gain it over several rounds, so I think this is OK. A pinch more would be fine too.
The problem is that at level 10 it heals 32 and at level 15 it heals 66. Depending on the specific effects, 1st level spells max out at a certain point. For example, CLW maxes out at 1d8+5. Magic missle maxes out at 5 missles. Shocking Grasp at 5d6. Divine Favor at +3. Some cap at caster level 5, some at caster level 9. Just depends on the spell. The continued scaling of your spell makes it just too good
I suggest going with fast healing 3 for three rounds. 9 points healer in all. At caster level 3, 5, 7, and 9 the amount of fast healing increases by 1 but the duration stays at 3 rounds. Thats 21 points healed over 3 rounds.
Yeah, infernal healing already fills that niche.