Professor's Research (Professor Oak) 023/025
Supporter card from Celebrations · released Oct 8, 2021
Regulation mark DWhat the codes mean
Professor's Research (Professor Oak) is a Holo Rare Supporter card, number 023/025 in Celebrations (released Oct 8, 2021), illustrated by KIYOTAKA OSHIYAMA. Its TCGplayer market price was ~$0.35 for the holofoil finish on Oct 30, 2026. Between Oct 1 and Oct 30, 2026, its Holofoil TCGplayer market price went from ~$0.28 to ~$0.35, up $0.07.
Prices by finish
| Finish | PriceMarket price | Low | Mid | Buy |
|---|---|---|---|---|
| Holofoil | ~$0.35 | ~$0.04 | ~$0.34 | CardNexuseBayBuy Holofoil on TCGplayer (opens in a new tab)Search eBaySearch AmazonCardNexus |
TCGplayer market prices per finish, as of Oct 30, 2026. A guide, not an appraisal; condition and grading change real-world value. Buy links are affiliate links.
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Sealed Celebrations products
TCGplayer market prices (via TCGCSV), Oct 30, 2026.
Pokemon Center Elite Trainer Box (Exclusive)~$469.52Buy on CardNexusSearch eBayBuy on TCGplayer Celebrations Pokemon Center Elite Trainer Box (Exclusive) (opens in a new tab)Search eBaySearch AmazonCardNexus
Card details
| Set | Celebrations |
| Number | 023/025 |
| Rarity | Holo Rare |
| Artist | KIYOTAKA OSHIYAMA |
| Regulation mark | D |
| Format legality | ExpandedNot in Standard: regulation mark D rotated out on Apr 10, 2026. A reprint with a legal mark can still be played. |
| Finishes | Holofoil |
What the codes mean
- Card number023/025Card 23 of the 25 in the main Celebrations list.
- Set symbol
The small Celebrations symbol identifies the set. Cards from before Scarlet & Violet print a symbol instead of a set code. - Regulation markDStandard legality goes by this letter, and D is out of Standard: since Apr 10, 2026 only H and later are legal, unless the card has a reprint with a legal mark.
- RarityHolo Rare, printed as a small symbol after the number.
- Illustrator“Illus. KIYOTAKA OSHIYAMA” names the artist who made the art.
Card text
Discard your hand and draw 7 cards.
Other Professor's Research (Professor Oak) printings
More Celebrations cards
Card data via TCGdex and pokemontcg.io, updated Oct 31, 2026. Prices: TCGplayer market prices via TCGCSV, Oct 30, 2026.