FWIW, your Darkness QI is 6 and your Entropy QI is 3.39. Have you tried one fewer amethyst pillar and maybe converting one to a pendulum?
OTOH the Darkness cards benefits from the reliability of the Mark and doesn't need to be played terribly early. So I don't see a huge problem with that half. That's a pretty low QI on the Entropy side, though. Do you ever feel flooded with quantum?
I can't test it myself as I don't have enough upped cards. The closest I could get, if I spent my available electrum on 2 more chaos power upgrades, would be something like this:
Hover over cards for details, click for permalink
4tc 4tc 4vc 4vc 4vc 4vc 4vc 4vc 4vn 4vn 4vn 50u 50u 5uu 5uu 5uu 5uu 5uu 5uu 6ts 6u2 6u2 6u2 6u2 6u2 6u4 6u7 6u7 6u7 6ve 6ve 6ve 8pt
The unupped LSes and AMs really push my QI up, so it'd probably be too slow, and those unupped shields are just plain sad.
TL;DR: According to
http://www.quantum-index.com you have a lot of extra Entropy quanta generation that you might want to think about. Cool deck though.
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Edit: Went ahead and tried the half-upped deck. I haven't run into Serket yet, but I imagine with my tiny shields he'll be a loss/skip candidate. The unupped shields still help a LOT with firefly spam, however, and presumably other spam (paradox, ferox, etc) too. Eight wins and 6 losses so far; not bad. Acceptable quanta flow despite slightly worse QI - nothing to spare, generally, but sufficient amounts for my needs.