Hello.
You can remove: -1 heavy armor
-2 supernovas
-1 Sor
-1 Miracle: it can save your life sometimes, but you never know when you are going to draw it or if you will have enoght quanta, with entropy rainbow with supernovas, it can be more useful, althought I don't like it.Maybe if you quit the miracle you prefer the sundials upped for better quanta distribution. People usually don't like upped sundials, but I prefer it to unnuped, because you can have a bad hand with mulligan and without it, but I don't like when I can't draw a card because I need that time quanta or i can't play the sundial having 0 time quanta.
-1 Rewind: is really necessary? If you have control of board and you don't have draw etenity already, stop using hourglasses.
If you have Sogs, I will remove both feral bonds and add 4-6 Sogs.
The purple nymph is fun to use, but if you remove it also quit the Sor.
-1 quintaessence:with two is enought, three is easy to play, but is not really necessary.
If you want, you can try Pervepic time rainbow or Seravy time rainbow, both are very good decks that I always suggest.