Cards like Boseiju, Who Endures, Arena of Glory, and Cori Mountain Monastery fulfill a similar role to MDFCs in that they provide a land with an additional or alternative mode so that you still have a way to spend your mana, even if you draw a bunch of lands
If a card says counter a spell, draw a card, bounce a thing, steal a thing, do some damage or is some kind of tempo board play and it is in a cube the chance are that the card will be OK
In case you haven't seen them before, here's a quick look at some of their peculiarities
You can do this by ordering the cards alphabetically or by national number, to name two options
Notably, none of these cards will be banned in any other Arena format, including Brawl and Timeless, and none of them are actually in the main Edge of Eternities set