Gemstone Caverns [Time Spiral] Kaladesh Inventions unyielding and certain

unyielding and certain

Activate this ability only during your upkeep and only once each turn

destroy all nonland permanents target opponent controls

that creature's controller sacrifices it

Hellfire deals X plus 3 damage to you

Gemstone Caverns [Time Spiral] Kaladesh Inventions unyielding and certainSet: Time Spiral Type: Legendary Land Rarity: Rare 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.