Gravekeeper's Oracle [STP1-EN016] Ultra Rare 204 if you have no monsters

if you have no monsters in your Graveyard: Negate the activation

This effect cannot be activated if you control a face-up "Treeborn Frog"

and give your agents the authority to bring in enemy monsters for questioning

If it inflicts battle damage to your opponent: Gain LP equal to the damage inflicted

Set: Platinum: Rising Rivals Type: Darkness Rarity: Uncommon Retreat cost: 0

Gravekeeper's Oracle [STP1-EN016] Ultra Rare 204 if you have no monstersSet: Speed Duel: Tournament Pack 1 Card type: Effect Monster Rarity: Ultra Rare Attack: 2000 Defense: 1500 You can Tribute 3 monsters or 1 "Gravekeeper's" monster to Tribute Summon (but not Set) this card. When this card is Tribute Summoned: You can activate any of these effects, and resolve in sequence, up to the number of "Gravekeeper's" monsters Tributed for its Summon; This card gains ATK equal to the combined Levels that all monsters Tributed for