Professor Cozmo's Discovery

Holon Phantoms · #89 · Uncommon

$6.98US · TCGplayer

$0.18EU · Cardmarket

-6%7-day (EU)

-29%30-day (EU)

UncommonRarity

#103 of 111Rank in set

Price detail

Market read: flat this week; -29% over 30 days; a budget pickup in its set; notably pricier in the US.

TCGplayer (US) (reverseHolofoil)

Tier	USD
Low	$2.26
Market	$6.98
Mid	$7.49
High	$69.90

Cardmarket (EU)

Metric	EUR
Trend	€0.17
Avg 1-day	€0.02
Avg 7-day	€0.18
Avg 30-day	€0.24
Low	€0.02

FAQ

How much is Professor Cozmo's Discovery (Holon Phantoms #89) worth?

As of our 2026-06-12 data, Professor Cozmo's Discovery from Holon Phantoms is worth about $6.98 (TCGplayer US market) and around €0.18 (Cardmarket EU). Prices move constantly — check the live links before buying or selling.

Is Professor Cozmo's Discovery rare?

Its rarity is listed as Uncommon and it ranks #103 of 111 by value in Holon Phantoms. Rarity is the printed classification — it does not by itself guarantee value.

What's the most valuable card in Holon Phantoms?

By current US market price, it's Mewtwo ★ at $9,200.

Is Professor Cozmo's Discovery's price going up or down?

On the Cardmarket (EU) trend it's -6% over 7 days, -29% over 30 days. That's an early momentum signal, not a guarantee — collectible prices are volatile and can reverse quickly.

Where can I check Professor Cozmo's Discovery's live price?

See the current TCGplayer (US) market price here: Professor Cozmo's Discovery on TCGplayer ↗.