Professor Cozmo's Discovery is a Deoxys card from the 2005 release window. Core profile: Its card type is Trainer.
The rarity label is Uncommon. This print is categorized under the Supporter subtype.
Card rules text: 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.
For Professor Cozmo's Discovery in Deoxys, the current reference price is $0.27. Price action is stable over 7 days, moving only 0.0%.
It now sits 3.2% above its 30-day average of $0.26. In the past 90 days, observed prices ranged from $0.24 to $0.38 (52% spread), a high-volatility profile.
The listed rarity for this print is Uncommon.
Market structure summary: Weekly drift is minimal (0.0%), indicating a relatively balanced short-term market. With a 52% 90-day spread ($0.24-$0.38), this card currently tracks as high-volatility.
Current value is 3.2% above its 30-day reference ($0.26). Graded comparison currently centers on PSA 9 near $16.04, representing +5841% over raw value.
Release year for Deoxys is 2005. Deoxys is grouped under the EX era.
The checklist contains 108 cards, placing it in a mid-size expansion range. As of 2026, the set is 21 years old and fits a legacy-era profile.
Within this set, Professor Cozmo's Discovery is card number 90 with a Uncommon designation.
Other Professor printings create a useful comparison set for Professor Cozmo's Discovery. The current sample spans 2 comparable cards from 2 sets.
Comparable prices currently cover $0.15-$0.59, a 293% band. Against the sample mean of $0.37, this card is -27%.
Notable alternatives include Professor Cozmo's Discovery #10 (EX Trainer Kit 2 Plusle) at $0.15 and Professor Cozmo's Discovery #89 (Holon Phantoms) at $0.59.
