Fun facts:
Island, Forest and Swamp are banned in both regular and snow-covered form, but Mountain and Plains are legal in both forms

Bayou, Overgrown Tomb, Golgari Rot Farm, and Blooming Marsh are all banned; every RW dual is still legal

The color wheel is balanced.

Of the Power11 (adding Sol Ring and Mana Crypt), all the artifacts were banned early but Ancestral Recall, Time Walk and Timetwister are still legal (weak under these rules).