Question 1

What is the current market value of Professor Cozmo's Discovery #90?

Accepted Answer

Professor Cozmo's Discovery (Deoxys) is presently valued at about $0.49 in raw condition. Compared with last week, pricing is 30.0% lower. It is currently 12.2% below the 30-day average of $0.56. In the past 90 days, observed prices ranged from $0.34 to $0.70 (73% spread), a high-volatility profile. The listed rarity for this print is Uncommon.

Question 2

Is Professor Cozmo's Discovery #90 a good investment or collectible?

Accepted Answer

Market structure summary: Week-over-week movement is negative (30.0%); this leaves value 30% under the 90-day peak. The 90-day range spans $0.34 to $0.70 (73% spread), which indicates high-volatility behavior. Versus the 30-day average ($0.56), the card is trading 12.2% lower. No consistent graded benchmark is available in this snapshot, so condition-adjusted pricing should be reviewed with active listings.

Question 3

What is Professor Cozmo's Discovery #90 and what makes it special?

Accepted Answer

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. If heads, draw the bottom 3 cards of your deck. If tails, draw the top 2 cards of your deck. No explicit attack names are available in the loaded card metadata. Uncommon-tier prints usually balance accessibility with moderate collector demand.

Question 4

What are the alternative Professor cards available?

Accepted Answer

Other Professor printings create a useful comparison set for Professor Cozmo's Discovery. Comparable entries in this snapshot: 2 cards, 2 distinct sets. Observed alternatives run from $0.17 to $0.33 (94% spread). The current card sits +96% versus the sampled alternative average of $0.25. Notable alternatives include Professor Cozmo's Discovery #89 (Holon Phantoms) at $0.17 and Professor Cozmo's Discovery #10 (EX Trainer Kit 2 Plusle) at $0.33.

Question 5

What set is Professor Cozmo's Discovery #90 from, and when was it released?

Accepted Answer

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.

Professor Cozmo's Discovery #90

Price history

All Professor Cozmo's Discovery cards

Card details