Gravekeeper's Oracle (SBC2-ENF13) [Common]

Game: Yu-Gi-Oh!

Series: Speed Duel: Battle City Finals

Set: Speed Duel: Battle City Finals (#13)

Rarity: Common

Card Type: Monster

Attribute: DARK

Monster Type: Spellcaster

Stats: ATK 2000 / DEF 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 Tribute Summon had on the field x 100.
• Destroy all Set monsters your opponent controls.
• All monsters your opponent currently controls lose 2000 ATK/DEF.