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.
![Gemstone Caverns [Time Spiral Remastered]](http://www.cardmerchanttakapuna.co.nz/cdn/shop/files/0555eed4-2167-513c-bc22-2a4397205307.jpg?v=1766610481&width=1445)