Gemstone Caverns [Time Spiral Remastered]Set: Time Spiral Remastered Type: Legendary Land Rarity: Mythic If Gemstone Caverns is in your opening hand and you're not the starting player, you may begin the game with Gemstone Caverns on the battlefield with a luck counter on it. If you do, exile a card from your hand. {T}: Add {C}. If Gemstone Caverns has a luck counter on it, instead add one mana of any color.