Concerning your changes suggestions:
1. Stay away from Dissipation Shield. I understand that your Discord are the only cards utilizing
, but the bottom line is that there are other shields (Fog has been suggested) that would serve more of a purpose; because you're generating 1
quantum per turn through your mark and 6 more through nova, you're going to find the shield getting eaten through pretty quick even if it is later in the game.
2. While Butterfly Effect is a powerful card, I'm interested to know what card you plan to use it on. Butterfly Effect only works on cards with less than 3 attack, which none of these cards have.
If you're looking for cards to use with your entropy quantum, I'd suggest Antimatter or Maxwell's Demon to fill those spots. Antimatter is great for dealing with high damage creatures and in return heals you at same time (unfortunately its cost is fairly high). Maxwell's is generally useful against almost any high damage creature in the game and it's effect is reusable (the effect however does cost 2
to use, so it might not be the best solution). Yet another solution is to use Chaos Seed for some creature control, given the effect delivered on the opposing creature is random, it's still a cheap form of creature control.
Nice deck overall though.