So Modulo suggested to ditch the adepts for +1 harnessed lightning and 2 fling.
In theory I liked this switch since fling acts as a burn spell when your big dudes are met with removal, and the deck runs no counters, so extra spot removal is a good idea. I commend him on this since I think many people would've said to cut the lightnings, which I also think the deck isn't fast enough for.
In practice, it didn't work out. Fling was often crap in hand and I felt reluctant to discard it because of losing the board and hoping to dig for a combo finish with a drake, which only happened once.
I remember running Izzet burn in previous seasons on 22 lands. I was getting flooded very heavily often with this list, but I kept the 24 land as a base because of it semi reliably bringing the Serpent on the table t4. One could try to remove some land for some cycling instants such as
censor or
hieroglyphic illumination, and supplement this plan by cutting the Fevered Visions (another permanent) for more copies of such cards.
The con to cutting land is that the deck is quite color hungry, and whilst the previous iterations in AR and Kaladesh were close to monored, this one is trying to cast a
4 drop. That's quite the tension.
Anyway, just some ideas....