Pokémon · League & Championship Cards
Professor Oak's New Theory
French name: Nouvelle théorie du Prof. Chen (League Promo)
Professor Oak's New Theory (League Promo) (League & Championship Cards 101/123) has a market price of US$39.65 as of Nov 10, 2026.
Price guide
The market price on TCGplayer, in US dollars: a guide, not an offer.
Market price
As of Nov 10, 2026 · The market price is TCGplayer’s, in US dollars. It is a guide, not an offer.
Card details
- Type
- Trainer - Supporter
- HP
- 0
- Retreat cost
- 0
- Artist
- Ken Sugimori
Card text
You can only play 1 Supporter card each turn. When you play this card, put it next to your Active Pokémon. When your turn ends, discard this card. Shuffle your hand into your deck. Then, draw 6 cards.
About this card
Professor Oak's New Theory (League Promo) is card 101/123 in League & Championship Cards, a Pokémon set released Jun 1, 2016. Rarity: Promo. Finishes: Reverse Holofoil. Illustrated by Ken Sugimori. Reference market price on Nov 10, 2026: US$39.65. Over the last 30 days, the Reverse Holofoil price went up 18.5%. Source: TCGplayer market data via tcgcsv.com, updated daily. A reference price is not an offer.
Other printings
- Professor Oak's New Theory - 2012 (Chase Moloney)83/95World Championship Decks · US$1.25
- Professor Oak's New Theory068/070L1: HeartGold Collection · US$1.00
- Professor Oak's New Theory - 2012 (Shuto Itagaki)83/95World Championship Decks · US$1.00
- Professor Oak's New Theory83/95Call of Legends · US$0.95
- Professor Oak's New Theory - 2011 (Ross Cawthon)83/95World Championship Decks · US$0.85
- Professor Oak's New Theory - 2010 (Yuta Komatsuda)101/123World Championship Decks · US$0.80
- Professor Oak's New Theory101/123HeartGold SoulSilver · US$0.71
- Professor Oak's New Theory - 2011 (Christopher Kan)101/123World Championship Decks · US$0.67
