Play creatures, then buff them with counters and proliferate
Along with Foundations is coming Foundations Jumpstart, a supplemental set that has you taking two large packs, shuffling them up together, and then battling your friends with them
All these factors make Soulstone Sanctuary a respectable creature land for decks in search of one
If you have some other crazy idea up your sleeve, you can use a card like Baral, Chief of Compliance, which works as a creature and helps lower the mana cost of Time Stretch
Its a unique scenario - especially with pricing, as how does one place value on a set which a great many people dont even know about
Some investors treat them like a diversified portfolio