I would suggest cutting Glowfly Swarm and Savage Roar for Guess the Weight and Wrath. The deck already has enough finishers, and doesn't need the Glowfly package.
Guess the Weight and Wrath make the deck a lot more consistent. I have been doing very well since making this change and I suggest you try it out!
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I now encounter this deck roughly 85% of the time I queue up for standard ranked. Yippee.