I need some advice on a draw-discard deck. While I feel like I've got it close, I would be grateful for any advice that can improve this deck. It's built to a similar style of several Niv-Mizzet, the Firemind EDH builds, but with a few grixis-colored cards for enhanced support. The meta is casual/semi-competitive... any, I usually just play with anyone who's willing to play. I know it lacks something, but I'm having trouble telling what.
Deck, Reference- The King's Majesty