@HeyMagic the issue with your ban list is that its highly inconsistent.
You have banned a bunch of mana doublers for whatever reason yet missed out on
Extraplanar Lens and
Caged Sun as well as the half dozen or so mana doublers in black.
There are also still atleast another half dozen extra turn spells you missed, all of which do basically the exact same thing as the extra turn spells you have added.
Almost every card on your list has some degree of redundancy in the form of other cards that do similar things that you haven't added.
It wouldn't take much of a seasoned player to build a truly horrendously potent deck entirely around your rules, Im pretty sure if I removed a
sol ring from one of my decks it would do precisely that. The most this ban list has done is prevent CEDH level decks from walking in due to your ban on most of the mana rocks used at that level of play.
My point being is that prohibition is stupid, if you want to stop people from ruining things then you are better off fostering an environment where people can ruin things in a fun supportive and safe way, much like drinking.