I looked at your deck, but I find no reason for adding Wastes. If you really have no reason to do it, you should avoid it because that makes your mana so much worse, otherwise i would like to know the reason of that choice.
Good point here!
I also have a few questions here.
Why playing 42 lands and just a
sol ring as a real ramp spell? a lot of high cmc cards and actually no ramp will make this deck very slow
Why is self-discard such a big thing in this deck? The only card which will synergize with self-discard is
bone miser.