Professor Cozmo's Discovery

Holon Phantoms#89Uncommon

$0.50−2.0% (7d)

Track this card in Slab

Prices by printing

Base: $0.50

Price history

$0.50+6.4% (90d)

Low $0.45High $0.51

Updated 2026-10-03

Daily price log

Daily TCGplayer market snapshots for this printing — not individual sales.

Date	Market price
2026-10-03	$0.50
2026-10-02	$0.50
2026-10-01	$0.50
2026-09-30	$0.50
2026-09-29	$0.50
2026-09-28	$0.50
2026-09-27	$0.51
2026-09-26	$0.51
2026-09-25	$0.51
2026-09-24	$0.51

Show all 365 days

2026-09-23	$0.51
2026-09-22	$0.51
2026-09-21	$0.51
2026-09-20	$0.51
2026-09-19	$0.51
2026-09-18	$0.51
2026-09-17	$0.51
2026-09-16	$0.51
2026-09-15	$0.51
2026-09-14	$0.51
2026-09-13	$0.51
2026-09-12	$0.51
2026-09-11	$0.51
2026-09-10	$0.51
2026-09-09	$0.51
2026-09-08	$0.51
2026-09-07	$0.51
2026-09-06	$0.51
2026-09-05	$0.51
2026-09-04	$0.51
2026-09-03	$0.51
2026-09-02	$0.51
2026-09-01	$0.51
2026-08-31	$0.50
2026-08-30	$0.50
2026-08-29	$0.51
2026-08-28	$0.50
2026-08-27	$0.50
2026-08-26	$0.50
2026-08-25	$0.50
2026-08-24	$0.51
2026-08-23	$0.51
2026-08-22	$0.51
2026-08-21	$0.51
2026-08-20	$0.51
2026-08-19	$0.51
2026-08-18	$0.51
2026-08-17	$0.51
2026-08-16	$0.51
2026-08-15	$0.51
2026-08-14	$0.51
2026-08-13	$0.47
2026-08-12	$0.47
2026-08-11	$0.47
2026-08-10	$0.46
2026-08-09	$0.46
2026-08-08	$0.46
2026-08-07	$0.46
2026-08-06	$0.46
2026-08-05	$0.46
2026-08-04	$0.46
2026-08-03	$0.46
2026-08-02	$0.46
2026-08-01	$0.46
2026-07-31	$0.46
2026-07-30	$0.46
2026-07-29	$0.46
2026-07-28	$0.46
2026-07-27	$0.45
2026-07-26	$0.45
2026-07-25	$0.47
2026-07-24	$0.47
2026-07-23	$0.47
2026-07-22	$0.47
2026-07-21	$0.47
2026-07-20	$0.47
2026-07-19	$0.47
2026-07-18	$0.47
2026-07-17	$0.47
2026-07-16	$0.47
2026-07-15	$0.47
2026-07-14	$0.47
2026-07-13	$0.47
2026-07-12	$0.47
2026-07-11	$0.47
2026-07-10	$0.47
2026-07-09	$0.47
2026-07-08	$0.47
2026-07-07	$0.47
2026-07-06	$0.47
2026-07-05	$0.47
2026-07-04	$0.47
2026-07-03	$0.48
2026-07-02	$0.48
2026-07-01	$0.48
2026-06-30	$0.47
2026-06-29	$0.48
2026-06-28	$0.48
2026-06-27	$0.50
2026-06-26	$0.50
2026-06-25	$0.50
2026-06-24	$0.50
2026-06-23	$0.51
2026-06-22	$0.51
2026-06-21	$0.50
2026-06-20	$0.50
2026-06-19	$0.50
2026-06-18	$0.51
2026-06-17	$0.51
2026-06-16	$0.51
2026-06-15	$0.51
2026-06-14	$0.51
2026-06-13	$0.51
2026-06-12	$0.51
2026-06-11	$0.51
2026-06-10	$0.51
2026-06-09	$0.51
2026-06-08	$0.51
2026-06-07	$0.51
2026-06-06	$0.52
2026-06-05	$0.49
2026-06-04	$0.49
2026-06-03	$0.49
2026-06-02	$0.49
2026-06-01	$0.49
2026-05-31	$0.49
2026-05-30	$0.49
2026-05-29	$0.49
2026-05-28	$0.49
2026-05-27	$0.49
2026-05-26	$0.49
2026-05-25	$0.49
2026-05-24	$0.49
2026-05-23	$0.49
2026-05-22	$0.49
2026-05-21	$0.49
2026-05-20	$0.49
2026-05-19	$0.49
2026-05-18	$0.51
2026-05-17	$0.51
2026-05-16	$0.51
2026-05-15	$0.51
2026-05-14	$0.51
2026-05-13	$0.51
2026-05-12	$0.51
2026-05-11	$0.50
2026-05-10	$0.50
2026-05-09	$0.50
2026-05-08	$0.50
2026-05-07	$0.50
2026-05-06	$0.50
2026-05-05	$0.50
2026-05-04	$0.50
2026-05-03	$0.50
2026-05-02	$0.50
2026-05-01	$0.50
2026-04-30	$0.50
2026-04-29	$0.50
2026-04-28	$0.50
2026-04-27	$0.50
2026-04-26	$0.50
2026-04-25	$0.50
2026-04-24	$0.50
2026-04-23	$0.50
2026-04-22	$0.50
2026-04-21	$0.50
2026-04-20	$0.50
2026-04-19	$0.50
2026-04-18	$0.61
2026-04-17	$0.61
2026-04-16	$0.61
2026-04-15	$0.61
2026-04-14	$0.61
2026-04-13	$0.61
2026-04-12	$0.64
2026-04-11	$0.64
2026-04-10	$0.64
2026-04-09	$0.62
2026-04-08	$0.62
2026-04-07	$0.62
2026-04-06	$0.62
2026-04-05	$0.62
2026-04-04	$0.62
2026-04-03	$0.62
2026-04-02	$0.62
2026-04-01	$0.62
2026-03-31	$0.62
2026-03-30	$0.62
2026-03-29	$0.62
2026-03-28	$0.62
2026-03-27	$0.62
2026-03-26	$0.62
2026-03-25	$0.62
2026-03-24	$0.59
2026-03-23	$0.59
2026-03-22	$0.59
2026-03-21	$0.59
2026-03-20	$0.59
2026-03-19	$0.59
2026-03-18	$0.59
2026-03-17	$0.59
2026-03-16	$0.59
2026-03-15	$0.59
2026-03-14	$0.59
2026-03-13	$0.59
2026-03-12	$0.59
2026-03-11	$0.59
2026-03-10	$0.59
2026-03-09	$0.59
2026-03-08	$0.59
2026-03-07	$0.59
2026-03-06	$0.59
2026-03-05	$0.59
2026-03-04	$0.59
2026-03-03	$0.59
2026-03-02	$0.59
2026-03-01	$0.62
2026-02-28	$0.62
2026-02-27	$0.62
2026-02-26	$0.62
2026-02-25	$0.61
2026-02-24	$0.61
2026-02-23	$0.61
2026-02-22	$0.61
2026-02-21	$0.61
2026-02-20	$0.61
2026-02-19	$0.61
2026-02-18	$0.61
2026-02-17	$0.61
2026-02-16	$0.61
2026-02-15	$0.61
2026-02-14	$0.61
2026-02-13	$0.61
2026-02-12	$0.61
2026-02-11	$0.61
2026-02-10	$0.61
2026-02-09	$0.61
2026-02-08	$0.62
2026-02-07	$0.62
2026-02-06	$0.62
2026-02-05	$0.62
2026-02-04	$0.62
2026-02-03	$0.62
2026-02-02	$0.62
2026-02-01	$0.62
2026-01-31	$0.62
2026-01-30	$0.62
2026-01-29	$0.62
2026-01-28	$0.62
2026-01-27	$0.62
2026-01-26	$0.62
2026-01-25	$0.59
2026-01-24	$0.59
2026-01-23	$0.59
2026-01-22	$0.59
2026-01-21	$0.59
2026-01-20	$0.59
2026-01-19	$0.58
2026-01-18	$0.58
2026-01-17	$0.58
2026-01-16	$0.58
2026-01-15	$0.58
2026-01-14	$0.58
2026-01-13	$0.58
2026-01-12	$0.58
2026-01-11	$0.58
2026-01-10	$0.54
2026-01-09	$0.54
2026-01-08	$0.54
2026-01-07	$0.54
2026-01-06	$0.54
2026-01-05	$0.54
2026-01-04	$0.54
2026-01-03	$0.54
2026-01-02	$0.54
2026-01-01	$0.54
2025-12-31	$0.54
2025-12-30	$0.54
2025-12-29	$0.54
2025-12-28	$0.55
2025-12-27	$0.55
2025-12-26	$0.55
2025-12-25	$0.54
2025-12-24	$0.54
2025-12-23	$0.54
2025-12-22	$0.54
2025-12-21	$0.54
2025-12-20	$0.54
2025-12-19	$0.54
2025-12-18	$0.54
2025-12-17	$0.54
2025-12-16	$0.52
2025-12-15	$0.52
2025-12-14	$0.52
2025-12-13	$0.52
2025-12-12	$0.52
2025-12-11	$0.52
2025-12-10	$0.52
2025-12-09	$0.51
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2025-12-07	$0.51
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2025-12-04	$0.51
2025-12-03	$0.51
2025-12-02	$0.51
2025-12-01	$0.51
2025-11-30	$0.51
2025-11-29	$0.51
2025-11-28	$0.51
2025-11-27	$0.51
2025-11-26	$0.51
2025-11-25	$0.51
2025-11-24	$0.51
2025-11-23	$0.51
2025-11-22	$0.51
2025-11-21	$0.51
2025-11-20	$0.50
2025-11-19	$0.50
2025-11-18	$0.49
2025-11-17	$0.49
2025-11-16	$0.49
2025-11-15	$0.49
2025-11-14	$0.47
2025-11-13	$0.46
2025-11-12	$0.46
2025-11-11	$0.46
2025-11-10	$0.46
2025-11-09	$0.46
2025-11-08	$0.45
2025-11-07	$0.45
2025-11-06	$0.45
2025-11-05	$0.45
2025-11-04	$0.45
2025-11-03	$0.45
2025-11-02	$0.45
2025-11-01	$0.45
2025-10-31	$0.45
2025-10-30	$0.45
2025-10-29	$0.45
2025-10-28	$0.45
2025-10-27	$0.45
2025-10-26	$0.45
2025-10-25	$0.45
2025-10-24	$0.45
2025-10-23	$0.45
2025-10-22	$0.45
2025-10-21	$0.45
2025-10-20	$0.45
2025-10-19	$0.35
2025-10-18	$0.35
2025-10-17	$0.35
2025-10-16	$0.35
2025-10-15	$0.35
2025-10-14	$0.35
2025-10-13	$0.35
2025-10-12	$0.35
2025-10-11	$0.35
2025-10-10	$0.33
2025-10-09	$0.33
2025-10-08	$0.33
2025-10-07	$0.33
2025-10-06	$0.32
2025-10-05	$0.32
2025-10-04	$0.32

Graded values

PSA 9$75.00Base

Where to buy

Prices on this page are TCGplayer market values, updated daily. We don't sell cards ourselves — search current TCGplayer listings for this card directly.

Search TCGplayer for this card (opens tcgplayer.com) →Track this card in Slab

Market snapshot

7-day change: −2.0%
30-day change: −2.0%
90-day change: +6.4%
90-day range: $0.45 – $0.51

1 variant tracked for this card. A top-graded PSA copy trades at roughly +14900.0% versus this raw price.

Updated 2026-10-03.

Card information

Identifier: ex13-89
Type: Trainer — Supporter
Series: EX
Set: Holon Phantoms
Year: 2006
Artist: Ken Sugimori

You can play only one Supporter card each turn. When you play this card, put it next to your Active Pokémon. When your turn ends, discard this card.

Flip a coin. If heads, draw the bottom 3 cards of your deck. If tails, draw the top 2 cards of your deck.

About this card

Professor Cozmo's Discovery is card #89 from the Holon Phantoms set, a Uncommon print. Holon Phantoms released in 2006 as part of the EX era. Its artwork is credited to Ken Sugimori.