That's a strong win-con here, card flow and token maker
Enter the Ultimate Trading Card Price Guide
That is unless you managed to pull this back when the set was in circulation
Ive still never seen a fake card with this
High Utility, Low Price Apprentice Necromancer Archaeomancer Azami, Lady of Scrolls Go for the Throat Rakdos Charm Reality Shift Terminate Chaos Warp Crosiss Charm Curse of Verbosity Decree of Pain Clone Legion Fellwar Stone Darksteel Ingot Worn Powerstone Nevinyrrals Disk Curse of Opulence Look, I know three-mana-value rocks are out of favor (unless theyre Cursed Mirror, etc.), but if Darksteel Ingot has no place in the format, then I want no part of it
While there are a few cards like this, Gemstone Caverns is the only land that has this trait, and is one of the ways that players can win on the very first turn of the game under admittedly very specific circumstances