Gemstone Caverns (394z) [Tales of Middle-earth Commander] [Borderless] Masters 25 Whenever this land or another

Whenever this land or another land you control enters

Set: Ninth Edition Type: Enchantment Rarity: rare Cost: {2}{R} Nonbasic lands are Mountains

If this artifact turns over completely at least once during the flip

that player loses half their life

Set: Emerald Rarity: Ultra Rare

Gemstone Caverns (394z) [Tales of Middle-earth Commander] [Borderless] Masters 25 Whenever this land or anotherSet: Tales of Middle earth Commander Type: Legendary Land Rarity: mythic If this card 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.