![Professor Oak's New Theory (101/123) (League Promo) [HeartGold & SoulSilver: Base Set] BW90 Set: Mirage Type: World Enchantment](https://cdn.shopify.com/s/files/1/0361/1479/2588/products/54c72f8f-a064-46bd-b9e2-817ec7174f98.jpg?v=1696335027)
Pay in 4 interest-free payments of $11.75 Learn more
Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
Set: Mirage Type: World Enchantment Rarity: Rare Cost: {1}{G}{G} At the beginning of each player's upkeep
Let your imagination run wild
Activate this ability only during your turn and only once each turn
was the product of an illicit government program whose goal was to create the ultimate mutant weapon
As Hallowed Fountain enters the battlefield
Professor Oak's New Theory (101/123) (League Promo) [HeartGold & SoulSilver: Base Set] BW90 Set: Mirage Type: World EnchantmentSet: HeartGold & SoulSilver: Base Set Type: Supporter Rarity: Promo
US$ 949.50
US$ 150.00
US$ 88.00
US$ 119.00
US$ 480.00
US$ 19.00
![Debt of Loyalty [Weatherlight] Merfolk Spellshaper](https://cdn.shopify.com/s/files/1/0331/1468/5484/products/2cf883ed-60ef-5386-992d-ebe368ac75c0.jpg?v=1692140586)
US$ 50.00
US$ 98.00
