Gemstone Caverns [Time Spiral] Frontier more powerful era

more powerful era

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {1} Creatures with power 3 or greater don't untap during their controllers' untap steps

take an extra turn after this one

and put it into your hand

you may tap lands you don't control for mana

Gemstone Caverns [Time Spiral] Frontier more powerful eraSet: 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.