I am sorry for bumping this old post, but I think it deserves some attention.
I saw it in the crucible today, and I really like the idea.
First of all, it fits the life theme (healing creatures, keeping stuff alive).
It also seems balanced, the art is awesome (<3 Broccoli) and stacking these would open up new tactics. Most importantly thoughis it's new and original, and that's what crucible suggestions should be all about. You got my vote!
And again, sorry for bumping, but last I heared jmdt loves necro's!