Gemstone Caverns - The List Reprints - #274/301

If Gemstone Caverns is in your opening hand and you're not playing first, you may begin the game with Gemstone Caverns in play with a luck counter on it. If you do, remove a card in your hand from the game. T Add 1 to your mana pool. If Gemstone Caverns has a luck counter on it, instead add one mana of any color to your mana pool.