Gemstone Caverns [The List] H11 Set: Countdown Calendar Promos Type:

Set: Countdown Calendar Promos Type: Water Rarity: Promo Retreat cost: 0

Set: XY: Fates Collide Type: Psychic Rarity: Secret Rare Retreat cost: Colorless

When Emrakul

create an X/X colorless Construct artifact creature token

Set: EX: Ruby & Sapphire Type: Colorless Rarity: Holo Rare Retreat cost: Colorless

Gemstone Caverns [The List] H11 Set: Countdown Calendar Promos Type:Set: The List Type: Legendary Land Rarity: Rare 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.