Pretty interesting. The only problem I see is that while 3 Discords and 5 Black Holes can stall a mono/duo opponent for the first 8 turns (maybe 5 if rainbow), if they're not dead by then they'll easily get back in the game because their pillars (except maybe by SoFo) aren't being destroyed. In the case of your deck, you remedy this by replacing the standard rush cards (Charger) with a lot of control/stall cards (Maxwells, Otyugh+CP, SoFo+GP). I don't know how well that'd work, and if you can kill them with 2 Chargers and an Overdriven SoFo before they get the ball rolling. Another thing I find strange is that you almost exclusively rely on SoFo for the BH, so I wonder how well you fare against rainbow rushes because they can probably get their creatures and CC out before you get to BH them.
All in all, good mod; I don't think it's been done before.