I made a deck a while ago that's good for taking out level 5s, which seems quite rare among Entropy decks for some reason. Plus it only has 30 cards, which means it's a pretty quick deck at that.
Unupgraded:
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4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vd 4ve 4vf 4vf 4vf 4vf 4vf 4vg 4vi 4vi 4vi 4vi 4vk 4vk 4vl 4vn 4vn 4vn 8pj
Upgraded:
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4ve 4vi 4vi 4vi 4vi 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6tt 6tv 6tv 6tv 6tv 6tv 6u0 6u4 6u4 6u5 6u7 6u7 6u7 8pj
Obviously you want to get a few dragons and most of your pillars out before using your shield. Maxwell's Demon is useful if you have no antimatters but need to get rid of a strong monster, but it's just there to be mutated like the abomination. Therefore feel free to replace them with other cards. Mutation is still worth keeping though, just in case you end up mirroring an opponent's monster.
The chaos seeds are left unupgraded because they're there to destroy the opponents creatures, and the abomination is left as it is because of it's attack.
EDIT: Made adjustments and ended up with this:
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4sa 4sa 4sa 4sa 4sa 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vd 4ve 4ve 4vf 4vf 4vf 4vi 4vi 4vi 4vi 4vm 4vm 4vn 4vn 4vn 6u0 6u5 8pj
If you count the quantum pillars as one each, it has a QI of 6.64. If you count them as three each, due to them giving three quanta each turn, you get 3.875.