Professor Cozmo's Discovery

Holon Phantoms · #89/110 · Uncommon

$0.47
Market price ▲ 46.9% (1Y)

Printings & price history

Normal$0.47Reverse Holofoil$7.15
Reverse Holofoil▲ 0.0% 7d$7.15
Low $2.48Mid $7.35High $69.90

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Graded values

updated 2026-07-08
Reverse Holofoil · PSA 10 price history$87.13

PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.

How much is Professor Cozmo's Discovery #89/110 worth?

Professor Cozmo's Discovery #89/110 is a Uncommon card from Holon Phantoms — today it trades at roughly $0.47 ungraded. Across the 2 printings we track, copies run anywhere from $0.15 to $69.90 depending on the version you're holding.

Grading changes the math on this one: a PSA 10 is valued around $43.59, roughly 92.7x the raw price, while a PSA 9 sits near $14.59.

Prices on this page refresh nightly from live TCGplayer market data and are cross-checked against actual sold prices, so a single inflated listing never becomes "the price". The chart above has the full history.

Other printings of Professor Cozmo's Discovery 11

Professor Cozmo's Discovery #17 Shockwave! Tyranitar ex Constructed Standard Deck (Japanese)
Professor Cozmo's Discovery
Shockwave! Tyranitar ex Constructed Standard Deck (Japanese) · #17/24
Professor Cozmo's Discovery #89 Holon Phantoms
Professor Cozmo's Discovery
Holon Phantoms · #89/110
Professor Cozmo's Discovery #10 EX Trainer Kit 2 Plusle
Professor Cozmo's Discovery
EX Trainer Kit 2 Plusle · #10/12
Professor Cozmo's Discovery #9 Gift Box Mew - Lucario (Mightyena Quarter Deck) (Japanese)
Professor Cozmo's Discovery
Gift Box Mew - Lucario (Mightyena Quarter Deck) (Japanese) · #9/15
Professor Cozmo's Discovery #90 Deoxys
Professor Cozmo's Discovery
Deoxys · #90/107
Professor Cozmo's Discovery #9 Fighting Quick Construction Pack (Japanese)
Professor Cozmo's Discovery
Fighting Quick Construction Pack (Japanese) · #9/15
Professor Cozmo's Discovery #9 Lightning Quick Construction Pack (Japanese)
Professor Cozmo's Discovery
Lightning Quick Construction Pack (Japanese) · #9/15
Professor Cozmo's Discovery #76 Clash of the Blue Sky (Japanese)
Professor Cozmo's Discovery
Clash of the Blue Sky (Japanese) · #76/82
Professor Cozmo's Discovery #14 Deoxys Constructed Starter Deck (Japanese)
Professor Cozmo's Discovery
Deoxys Constructed Starter Deck (Japanese) · #14/15
Professor Cozmo's Discovery #14 Rayquaza Constructed Starter Deck (Japanese)
Professor Cozmo's Discovery
Rayquaza Constructed Starter Deck (Japanese) · #14/15
Professor Cozmo's Discovery #10 EX Trainer Kit 2: Plusle & Minun
Professor Cozmo's Discovery
EX Trainer Kit 2: Plusle & Minun · #10/12