Professor Oak's New Theory (101/123) (League Promo) [HeartGold & SoulSilver: Base Set] BT9-099 Set: Kaldheim Sealed Release Date:

Set: Kaldheim Sealed Release Date: 2021-01-29 Raid the Realms

add 1 "The Weather" card from your Deck to your hand

if this card is in your GY and you control a Level 5 or higher Warrior monster whose current ATK is different from its original ATK (Quick Effect): You can Special Summon this card

Set: Structure Deck: Seto Kaiba Card type: Union/Effect Monster Rarity: Super Rare Attack: 1500 Defense: 1800 Once per turn

add 1 "Nephthys" monster from your Deck to your hand

Professor Oak's New Theory (101/123) (League Promo) [HeartGold & SoulSilver: Base Set] BT9-099 Set: Kaldheim Sealed Release Date:Set: HeartGold & SoulSilver: Base Set Type: Supporter Rarity: Promo