Since this section wasn't getting much love, I thought I'd try to go through each element and create the best decks I could. First up is Entropy.
If you picked Entropy when you started, you can use this basic aggro-deck for grinding AI3 (steps 5-7 in ScaredGirl's Newbie Guide). You might need to tweek the ratio of pillars and creatures.
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4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vc 4ve 4ve 4ve 4ve 4ve 4ve 4vf 4vf 4vf 4vf 4vf 4vf 8pj
Here's the best mono-deck I could come up with.
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4vg 4vi 4vi 4vi 4vk 4vk 4vk 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6tt 6tt 6tt 6tv 6tv 6tv 6tv 6tv 8pj
Hold off on the Dissipation Shield until the end game. It's there just to help you survive a couple more turns while you pound them to death. Unfortunately, this deck is seriously lacking in permanent control. Overall, it's not a very good deck.
Entropy/Darkness
I realize this is the mono section but I didn't think this duo-deck warranted a whole separate thread since it's related and Entropy-focused.
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6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6ts 6tt 6tt 6tv 6tv 6u1 6u1 6u1 6u1 7t6 7t6 7t6 7t6 7t6 7t9 7t9 7t9 7tc 7tc 7tc 8pt
This has a lot better balance of permanent and creature control with some decent hitting creatures. Devourers work much better than Dark Towers because of the drain on your opponent's quantum.
Feel free to give some suggestions or other dual colored decks that's Entropy focused.