Hi, apologies, I've only just realised this deck had comments on it; thank you for sharing your throughts.
Main reason for the lack of inclusions is that my decks are paper decks I own, so price is a factor (e.g
crucible of worlds is something I'm considering now it's been reprinted and the price dropped 75%).
Otherwise tends to be space - with the focus on self mill to get to something like
hermit druid + lab man, it limits room for good cards that don't do anything if I mill them (like
sylvan library). Trying out Muldrotha as a means to access all permanents in the graveyard so may add more enchantments if that works as planned.
Walking B is a good shout, I hadn't thought of that, will try and test it out.