i think it depends too much on the ray of light. if they get kill when u place them.. it will be a problem
That's true but... depending on what deck the other player is using, you can adjust your strategy.
Remember that it looks like there is a lot of Light cards in there, but there are really only 8 cards that use Light quanta and only 3 of those cards require 2 or more quanta. And it's really not
just the Rays of Light, there are also two copies of Luciferase. You can split a Deja Vu, cast a Luciferase, and you instantly get 2 Light quanta. Also, if they have a lot of creature control, you can always keep on Ray of Light in your hand until you draw the Fractal and play both on the same turn.
The deck looks like it depends on lots of Light quanta, but it really doesn't.
(You may want to try a version with +1 Ray of Light and -1 Improved Blessing or -1 Aether Tower.)