Aside from being a perfect replacement for SoG's in a mono-Life deck, don't you think that this card is somewhat limited? Even though it'll be a lot more accessible to newbies who want a reliable form of healing (without creatures or a weapon), I still imagine rainbows using SoG's for healing simply because of the 'any quanta' effect, compared to 3
quanta (which is usually spared for either the Fallen Druid's Improve technique and FFQ'S Firefly generator).
Oh, and I hate to break it to you Gl1tch, but that image isn't royalty free. >.< On the right side of art link you provided, it doesn't seem like it's free for public use (otherwise, a 'Download Image' button would be there rather than a "Buy This Print"). It's beautiful art, but I don't think it's going to get Kael's approval.