Gravekeeper's Servant [DLG1-EN056] Common BT1-040 with the twist that eight

with the twist that eight packs (they'll be clearly marked) will each come with one of 8 different planeswalker cards inside the pack (plus the normal rare or mythic rare card)

Set: Legendary Collection Kaiba Card type: Effect Monster Rarity: Ultra Rare Attack: 100 Defense: 100 (Quick Effect): You can discard this card to the GY

or [Sovereign] in one of its traits and 3000 DP or less from your hand without paying the cost

Set: Dark Crisis Card type: Effect Monster Rarity: Super Rare Attack: 3500 Defense: 0 This card can only be Special Summoned by the effects of "A Deal with Dark Ruler"

Gravekeeper's Servant [DLG1-EN056] Common BT1-040 with the twist that eightSet: Dark Legends Card type: Continuous Spell Rarity: Common Attack: 0 Defense: 0 Your opponent must send 1 card from the top of their Deck to the Graveyard to declare an attack.