Hall of Gemstone (Brian Selden) (SB) [World Championship Decks 1998] Pokemon Futsal Collection Set: Battlebond Type: Enchantment Rarity:

Set: Battlebond Type: Enchantment Rarity: Rare Cost: {3}{W}{W} Whenever a creature enters the battlefield under your control

Then if your library has no cards in it

Equip only to a "Shaddoll" monster

Set: Ancient Guardians Card type: Effect Monster Rarity: Collector's Rare Attack: 0 Defense: 0 Cannot be Normal Summoned or Set

It this card battles a monster

Hall of Gemstone (Brian Selden) (SB) [World Championship Decks 1998] Pokemon Futsal Collection Set: Battlebond Type: Enchantment Rarity:Set: World Championship Decks 1998 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.