For comparison, in Ravnica Remastered, the only retro frame nonfoils with a price above $10 are the ten shocklands, Cyclonic Rift, and Bruvac the Grandiloquent
Its perhaps not best-suited to newcomers since it requires keeping tabs on a lot of counters (often different types), but by spending some time planning, you can create Summon creatures and keep them on the board much longer than expected, while also powering up just about everything on your board
However, finding a home for this odd mana rock, and discovering its synergy with Lathiel and Well of Lost Dreams, is an added bonus
After a few days of matches with this build, I realized what a nightmare Oblivion Stone was for us
Im hardly surprised that this has become one of the most played black cards in recent years