@bruizar you'd see more 2c deck identities, and would also see some archetypes able to leverage Mirage Fetches. Brainstorm usage would drop precipitously, and we'd immediately see Hymn ripped away from SCM and Kcomm (which has needed to happen since SDT was banned). You would see a drop in Delver (particularly non-UR). The clear winners are R/G Lands and DnT (and other Vial decks); Ancient Tomb/Chalice would have fewer decks to feed on. What would likely happen with Tomb/Chalice is that mono-Red TurboMoon/Rabble would take over and hate Eldrazi Stompy right out of the format. In terms of mono-Red Turbomoon's position vs the rest of the format, they would make it much easier to hate on Ancient Tomb since it would have one best presentation. You still have to contend with R/G Lands, DnT, a UW deck (using slow-Fetches), and all the other 2c winners - I'm not sure if Burn, Turbomoon, and Death's Shadow would be that well positioned. ANT is also probably just fine being UB, though TES would be dead. Belcher is probably better situated than your examples? [Edit: probably Pox as well]. I'll tag on one last winner you'd have to have a good matchup against: LED Dredge