Gate Guardian [MRD-EN000] Secret Rare LGS100 You can only use 1

You can only use 1 "The Black Stone of Legend" effect per turn

Then if there are 3 or more lesson counters on The Librarian

Set: World Championship 2010 Card Pack Card type: Fusion/Effect Monster Rarity: Rare Attack: 1700 Defense: 1500 "Baby Dragon" + "Alligator's Sword" This card can attack directly if the only face-up monsters your opponent controls are EARTH

Set: EX: Team Rocket Returns Type: Fighting Rarity: Holo Rare Retreat cost: Colorless

Gate Guardian [MRD-EN000] Secret Rare LGS100 You can only use 1Set: Metal Raiders Card type: Effect Monster Rarity: Secret Rare Attack: 3750 Defense: 3400 This card can only be Special Summoned by offering Sanga of the Thunder, Kazejin and Suijin as a Tribute.