All Supernova speed rainbows are pretty similar and have similar results. As opponents decks are constantly changing, it is hard to measure a success. I myself make many rotation of cards in my deck while playing with it.
So it comes down to how you like to play your rainbow. For example, your deck has more creatures than mine. I will occasionally get a bad draw and start slow. My deck has more control + 2 forms of healing for EM. I will be able to beat larger variety of decks.
As for Wings... I dont think they are of a big use in such deck. 2 cards for shields, that cost 2x3
+ whatever you spend on webbing stuff. Your spiders have 3,3,2 HP. They will die to first CC that comes around.
They are good against decks like Shrieker rush though, but with stupid AI burrowing everything, you should be outrushing those decks anyway.