I posted the majority of this idea in another thread but I really liked it, so I put it on the Suggestion forums.
I have a proposal which I think falls in line with many things that the Blues are looking for in terms of Cataclysm changing healing to make it more interesting and less of whack-a-mole with raid frames. (Read: Blues have already said they don't want to give us the ToC Lightwell because it adds another fire and forget spell to our book. And plus that would just make it Healing Stream Totem that isn't group bound.)
- You lay down the well; this would be purely cosmetic. It would be awesome if what I describe below would have a visual representation on the Lightwell.
- The well harnesses energy which will be its resource to heal. Every time you cast a heal the well would absorb energy. In practice, let's say this aspect works exactly like the http://www.wowhead.com/?item=34471 trinket back from Magister's Terrace. [Let's say 10 stacks is the max, and every spell you cast adds a stack, maybe the well would flash or something each time, or upon reaching 10.]
-By clicking another spell linked to the Lightwell (think how Demonic Portal/Teleport are linked) you bring up a targetting circle like the one Priests have for Mass Dispel. People within the circle would get healed obviously.
-After thinking, I came up with 2 logical options. Either X amount of energy = X amount of healing divided by the number of targets it hits, or X amount of energy just heals each person for X amount with a player cap (5? 10?). I think the latter is a better option as the former would make it incredibly powerful on only 1-2 people, which might be a concern in PvP (albeit nice for Holy priest's terrible PvP performance).
-Lastly, what kind of heal is it? A direct heal? A HoT? In my opinion the best case would be something like a Druid's Wild Growth, although they might not appreciate Priest's taking one of their unique mechanics.
-Does not need a cooldown to not be spammable. Good design.
-Gets healers to heal by looking at the fight a little bit more instead of staring at raid frames.
-Makes an old iconic spell useful by taking the responsibility away from the individual and back to the healer.
-It is not an automatic/smart heal much like PoM / CoH.
-If Grid shows some people in Group 5 having low health and you want to use your Lightwell's energy to heal them, it becomes a bit difficult to "find" them.
Please tell me what you think (especially other cons, I'll edit them into the list). Unfortunately I have my doubts as to how many blues read through these forums.
P.S I get this nagging feeling that people will have trouble finding a niche for the spell.