mtg exile cards from the top of your library until Volcanic Torrent [Commander Legends] You may cast that card without paying its mana cost if the spells mana value is less than the number of Mountains you control Unpredictable Cyclone

It has four copies of Mind Stone counting as two lands, which brings the land count up to a more realistic 25

Its also a badass demon that draws you a bunch of cards, and you can also sink your black mana into removal and cards

That alone is enough to give the card a real shot in Pioneer

It's also notable that the effect only applies when creatures on the battlefield are exiled - it's no use exiling creature cards from hands or graveyards, which means my first instinct of pairing this guy with various iterations of the MTG planeswalker Ashiok won't work

The first copy is still probably better than this effect usually is, but dont prioritize it