Which leads me to Teferi, Temporal Archmage
Well, Bazaar of Baghdad is exactly that, and still ends up being a wildly overpowered card , especially for mid-to-late game situations that may require heavy card draw, searching your deck for your game winners, and interaction with your graveyard
Because you are only allowed to have 1 ACE SPEC Trainer card in your deck, some people would say that it really doesnt matter that much because there is only one of them, so it wont be a consistent part of your strategy
But its a cheap source of card advantage, very synergistic card advantage thanks to cards like Rain of Riches and Passionate Archaeologist, which is a promising start for a commander
Counters, auras, and other modifications common to voltron commander decks will stay stuck to their creatures through phase-out and phase-in