Hmmmmmm...
So basically, this card will replace what is now the rainbow deck?
I envision seeing a few of these in play, along with a mark of light and a few light pillars, and then just generating the exact quanta that you need, although somewhat slowly...
Hm, for every point I can think of that seems to make this card very powerful, there is a counterpoint to it. Very nice... Not sure what I would suggest differently. If this does make it, it will become a VERY influential card.