Hall of Gemstone [Mirage]Set: Mirage Type: World Enchantment Rarity: Rare Cost: {1}{G}{G} At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color.

Set: XY: Flashfire Type: Lightning Rarity: Holo Rare Retreat cost: Colorless

It can't be regenerated

Set: HeartGold & SoulSilver: Triumphant Type: Darkness

Set: Neo Destiny 1st Edition Type: Psychic Rarity: Holo Rare

Set: Diamond & Pearl: Stormfront Type: Darkness Rarity: Common Retreat cost: Colorless

Set: XY: Generations Type: Psychic Rarity: Promo Retreat cost: Colorless

The Sunken Ruin houses all the learning of a long-forgotten age

Set: Neo Genesis 1st Edition Type: Lightning Rarity: Rare

That creature doesn't untap during its controller's untap step for as long as you control Dungeon Geists

Set: EX: Holon Phantoms Type: Darkness Rarity: Common Retreat cost: Colorless

Set: Black & White: Boundaries Crossed Type: Item Rarity: Rare Ace

Set: Sword & Shield: Rebel Clash Type: Supporter Rarity: Ultra Rare