Gravekeeper's Oracle [SS01-ENB10] Common Thunder You can only use this

You can only use this effect of "Booster Dragon" once per turn

You can Tribute 1 monster this card points to

inflict 200 damage to your opponent

Set: Structure Deck: Zombie Horde Card type: Synchro/Effect Monster Rarity: Ultra Rare Attack: 2400 Defense: 2000 1 Tuner + 1+ non-Tuner monsters Gains 100 ATK/DEF for each Zombie monster on the field and in the GYs

You can only use each effect of "Infinitrack Harvester" once per turn

Gravekeeper's Oracle [SS01-ENB10] Common Thunder You can only use thisSet: Speed Duel: Destiny Masters Card type: Effect Monster Rarity: Common 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 its