If Gemstone Caverns is in your opening hand and you're not playing first, 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] | Cracking-Singles](http://www.cracking-tcgsingles.com.au/cdn/shop/products/94d74254-4750-4fb3-9e53-473a5f98b315.jpg?v=1622026903)
