Originally Posted by
Chronologist
First, I love the idea of a class, dedicated healing is something that doesn't really work in 3.5, and every new base class designed to fix it is good in my good.
Now, onto the P.E.A.C.H.ing
Power Word: Shield is a very strong effect, right from level 1. The first issue is that it uses a 1/2 attribute modifier, which is not usually done in 3.5; at its level of power, it should be written as 5 x wis modifier x level.
Second, granting that many (essentially temporary hit points) is pretty ridiculous, especially as a swift action. Consider a Paladin's lay on hands class feature. Each day, they can heal 2 x charisma modifier x level hit points. This ability is 2x5 times as effective, can be used on multiple allies, at range, it has no limit of uses per day, and can be invoked as a swift action. Fixing the class feature is going to require a lot of work.
I would make the shield grant 3 + Wis modifier temporary hit points as a standard action to an ally within 60 feet. The temporary hit points last 3 rounds. The temporary hit points do not stack with each other, but overlap, causing them to be reset to the highest value. I would restrict the ability so that it either has uses per day (maybe once per day per class level), or ensure the ability has a 5-round recharge.