Cards › HeartGold & SoulSilver › #101
Professor Oak's New Theory
- Number
- 101
- Illustrator
- Ken Sugimori
Professor Oak's New Theory - HeartGold & SoulSilver
Professor Oak's New Theory is a Uncommon Trainer card from the HeartGold & SoulSilver Pokémon TCG set, released 2010, illustrated by Ken Sugimori. It sits at card number 101 in the HeartGold & SoulSilver checklist and the Supporter subtype.
In collector terms, this is an uncommon card, pulled roughly 3 per pack. Current TCGplayer market price tops out at $6.92 across 2 printed variants (Normal, Holofoil, Reverse Holo, etc.), with every variant's low / mid / high and direct prices listed below.
Professor Oak's New Theory has been printed 2 times across different sets. The variant you're looking at (#101 in HeartGold & SoulSilver) is one of them - see every other printing further down to compare art, rarity, and current market price across all versions.
Prices USD 8 hours ago · 2026-04-26 08:12 UTC
Market Price History
Other printings of Professor Oak's New Theory
Professor Oak's New Theory FAQ
Click any question to expand. Every answer pulls from this card's live Catchinary data.
How much is Professor Oak's New Theory from HeartGold & SoulSilver worth?
Current TCGplayer market price is $6.92 across 2 variants. See the full variant breakdown above for low / mid / high / market / direct prices. Graded estimates (PSA 10, PSA 9, CGC Perfect) are shown when available.
How rare is Professor Oak's New Theory?
This printing is an uncommon card, pulled roughly 3 per pack (the card is labeled "Uncommon" on the checklist). Professor Oak's New Theory has been printed 2 times across different sets - earlier or limited printings often command premiums even when the rarity tier is identical.
Who illustrated Professor Oak's New Theory?
Ken Sugimori illustrated this card. See Ken Sugimori's full Catchinary page for every Pokémon card they've drawn, grouped by set with current market prices, career stats, and alt-art highlights.
When was Professor Oak's New Theory released?
The HeartGold & SoulSilver set released in 2010. This specific card (#101 in the set) has been tradeable on TCGplayer and Cardmarket since launch.
Where can I buy Professor Oak's New Theory?
Click Buy on TCGplayer above for US listings, or the Cardmarket link for European listings. Both feeds update multiple times per day. For long-term holds, consider graded copies (PSA / CGC) which trade separately and usually at a premium over raw.
Is this card in Standard format?
Legal formats rotate as new sets release - see the HeartGold & SoulSilver set page for current Standard / Expanded / Unlimited status. Catchinary tracks 0 cards across every English-language set, so if this one has rotated out there's almost certainly a current-format reprint you can check.