Trample works badly against protection, which includes protection from both type, subtype, and color
Its the kind of feel-good format preservation players are always begging for, and Wizards even acknowledged The Professors tireless campaign for a reprint by giving it to him as a preview card
What about the midrange mirror where this lets you turn your own Doomskar into a one-sided sweeper
I think there's a lot of cool things and nifty ideas at play here, but there's also a myriad of problems that need to be addressed with it - especially if we're going to continue down the trend of releasing mechanically unique cards based on external IPs
Some key cards to include: Seven Dwarves, Reckless Fireweaver, Glin, Dwarf Emissary, Xorn, and Hoard Hauler
These were Flood Plain, Bad River, Rocky Tar Pit, Mountain Valley, and Grasslands