Read a post that brought this up earlier and I started thinking about something that would be a useful addition to holy pallies limited arsenal. The first thing that came to me was something pretty much like the vial of the sunwell trinket; but I thought it sounded too plain. And then I thought of something that take a bit of skill to use optimally, addresses group healing issues without suddenly changing holy's niche, and could address mobility issues.
Path of the Holy - x Mana, instant cast, 9 sec. CD, 50 yard range. 9 second duration
Basically, you use it and it creates a strip of light about 1.5-2x the length of the pally which grows and moves forward somewhat like Doomfire without the seeking/changing path, towards the caster's facing. It would grow to it's maximum length of 50 yards over the course of say 3 seconds and then remain on the ground for another 6 seconds. Whenever a raid or party member enters the path they recieve x healing every second, healing up to a maximum of 5 players at a time.
How I see this being used for the tank + melee: Face towards the tank, use it, it will reach the tank and HoT him and the melee until fading in which case, recast it.
Mobile fights that require aoe healing: Cast it towards the tank and have everyone group up at the base of the PotH or have them spread out in a straight line and cast it towards w/e way that line is facing. Preemptively cast it to wherever you intend to move to so the entire group can follow the path and get an AoE HoT while they run along the path. It's not meant to be a comprehensive end-all solution to difficulty aoe healing, just an interesting new ability that gets the job done.
Thoughts? No need to comment on numbers as the balance I'm not concerned about so much as the actual potential. If you like it enough, post it on the beta forums and see what Blizz thinks.