I do like that using unique terms like unlock this door rather than enters the battlefield means the triggered abilities of Rooms work as intended even when the permanent is already in play
Well, Final Fantasy isnt exactly part of the multiverse, so towns arent quite canon to Magic lore yet, but the card type is now available to the game and could easily expand out of Universes Beyond
A real Food deck usually has a bunch on board more often than not, which means Butterbur wont even work most of the time
Despite feeling like a rather mediocre upgrade, this aura has already been added to 985 Killian Commander decks according to EDHREC
The problem I see here is that none - or maybe few - of these want to really be in a deck together
Its a cool one though, and youd be surprised how effective vigilance and bonus surveils are, not even factoring in the mass artifact reanimation on the activated ability