For the second Mystery Booster set, a ton of existing cards were given a border treatment matching those found in the Future Sight set
Finally, cards like Damping Sphere are perfect for a deck like this
Wake the Dead Its insulting that Wake the Dead has been around since Commander 2014 and still sees so little play
Most of the time casting this signifies the game has ended and so teh loss of mountains isn't relevant
The Bant deck has one of the sweetest Commanders in the set in Arixmethes, Slumbering Isle, which is a fine leader for a ramp deck, sea creature tribal, or some sort of sweet UG spellslinger deck, being a double-ramp spell on Turn 4 and eventually a finisher, killing an opponent with commander damage in just two attacks (or one, with the help of something like Berserk)
Rabanasta, City of the Kingdom is a land that enters tapped and taps for red or white mana