![Professor Oak's New Theory (101/123) (League Promo) [HeartGold & SoulSilver: Base Set] Legendary Planeswalker {1}{B}{R}: Put a -1/-1 counter](https://cdn.shopify.com/s/files/1/0025/3283/5377/products/54c72f8f-a064-46bd-b9e2-817ec7174f98_4fd9fd10-205e-4323-9439-8f76cd0b9fba.jpg?v=1706310520)
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{1}{B}{R}: Put a -1/-1 counter on another target creature
{T}: Return target permanent that isn't enchanted to its owner's hand
Set: Mystery Booster Type: Enchantment Rarity: Rare Cost: {1}{U}{U} Whenever an opponent casts a spell
if no creatures are on the battlefield
The rifts reach into infinite time streams
Professor Oak's New Theory (101/123) (League Promo) [HeartGold & SoulSilver: Base Set] Legendary Planeswalker {1}{B}{R}: Put a -1/-1 counterSet: HeartGold & SoulSilver: Base Set Type: Supporter Rarity: Promo
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