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Professor Cozmo's Discovery cards.

3 cards across 3 sets
updated Aug 13, 2026
Most valuable$7.35Cards priced3Sets3All copies$15

Every Professor Cozmo's Discovery card we price, most valuable first. Prices are what copies actually sold for, updated daily.

Professor Cozmo's Discovery, EX Holon Phantoms2Professor Cozmo's DiscoveryEX Holon Phantoms · 89/110$7.19Professor Cozmo's Discovery, EX Deoxys1Professor Cozmo's DiscoveryEX Deoxys · 90/107$7.35Professor Cozmo's Discovery, EX Trainer Kit 2: Plusle & Minun3Professor Cozmo's DiscoveryEX Trainer Kit 2: Plusle & Minun · 10/12$0.25
3 cards
Professor Cozmo's Discovery · 3 cards
Professor Cozmo's Discovery, EX DeoxysProfessor Cozmo's Discovery$7.35EX DEOXYSProfessor Cozmo's Discovery, EX Holon PhantomsProfessor Cozmo's Discovery$7.19EX HOLON PHANTOMSProfessor Cozmo's Discovery, EX Trainer Kit 2: Plusle & MinunProfessor Cozmo's Discovery$0.25EX TRAINER KIT 2: PLUSLE & MINUN

What a Professor Cozmo's Discovery card is worth

The most valuable Professor Cozmo's Discovery on this list is Professor Cozmo's Discovery from EX Deoxys at $7.35, and the 3 priced copies across 3 sets are worth $15 together. Most of that sits in a handful of printings: the older the set and the scarcer the print run, the wider the gap to the rest.

If you are trying to identify which Professor Cozmo's Discovery you have, the set name is printed on the card and the collector number sits in the bottom corner. Open the card here and the page carries every printing of it, the graded prices, and whether grading the copy is worth the fee. Sets to start with: EX Deoxys, EX Holon Phantoms, EX Trainer Kit 2: Plusle & Minun.