Nice deck, but a few points I might mention:
1. You're deck has 6 weapons. While you did say the rares are unneeded, 6 is a bit much for any non-animate weapon deck. I would stick with maybe three, probably only 2 in a deck this big. You also have a lot of varied healing for a T50 deck in a total of 10 healing cards (four that also do damage) I would stick with only a couple different kinds of healing cards.
2. The quanta is really unbalanced. Take a look:
7 (11 counting abilites)
10
0
0
10 (12 counting abilites)
8
0
2
10
12 (14 counting abilites)
4
15
3. If you're going for a growth rainbow, you need more cards that increase attack power either every turn or a lot at once. Plague, mummy, most of the weapons and healing cards, parallel universe, and the shards aren't too great in this deck, while chrysaora and pegasus would be. It's kind of in the middle between stall and rush. I would recommend trying to cut it down to less than 35 cards or so. A few more heals and vampire stiletto would be enough for a while. Also, black holes work great for T50.
