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
Enhance Your Strategy: With a diverse range of cards, this expansion pack provides limitless strategic possibilities
By doing this, you gain infinite combat phases, infinite combat damage, infinite Red mana (or infinite Green mana), and infinite untap of creatures you control
Modern production shuffles contents enough that no dependable map holds up across cases and sets
You can only play one land per turn, so if you cast more than one spell, you can't recover your mana base and fall back in advantage
There are only 40 game changers in total