Pokémon TCG card · Supporter

Professor Cozmo's Discovery

Professor Cozmo's Discovery has 15 printings across 10 sets on TCGplayer (5 English and 10 Japanese). Prices run from $0.27 to $7.35. The cheapest is Professor Cozmo's Discovery at $0.27 and the most valuable is Professor Cozmo's Discovery at $7.35. The most traded printing over the last 30 days is Professor Cozmo's Discovery, with 7 copies sold.

TCGplayer market prices as of 2026-09-29. Updated nightly.

Card text

Supporter

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

English printings (5)

Professor Cozmo's Discovery 90/107, EX Deoxys · Uncommon — Professor Cozmo's Discovery 90/107
EX Deoxys · Uncommon
$7.35
price history

Professor Cozmo's Discovery 89/110, EX Holon Phantoms · Uncommon — Professor Cozmo's Discovery 89/110
EX Holon Phantoms · Uncommon
$7.02
price history

Professor Cozmo's Discovery 10/12, EX Trainer Kit 2: Plusle & Minun · Common — Professor Cozmo's Discovery 10/12
EX Trainer Kit 2: Plusle & Minun · Common
$0.27
price history

Japanese printings (10)

Professor Cozmo's Discovery 017/024 Japanese, Shockwave! Tyranitar ex Constructed Standard Deck · None — Professor Cozmo's Discovery 017/024 Japanese
Shockwave! Tyranitar ex Constructed Standard Deck · None
$2.99
price history

Professor Cozmo's Discovery 076/082 Japanese, Clash of the Blue Sky · Uncommon — Professor Cozmo's Discovery 076/082 Japanese
Clash of the Blue Sky · Uncommon
$0.35
price history

Every printing of Professor Cozmo's Discovery

Buy every English printing (3, about $1.35)

One copy of each card. TCGplayer fills the cart with the cheapest listing for each card and prices move, so your total can differ from ours. Normal and reverse holo copies share one TCGplayer product, so each card goes in once. Disclosure: these buttons open TCGplayer through our affiliate link. It does not change your price and it supports this work.

Printing	Set	Rarity	Finish	Market	Sold 30d
Professor Cozmo's Discovery 10/12	EX Trainer Kit 2: Plusle & Minun	Common	Normal	$0.27	3	Buy
Professor Cozmo's Discovery 90/107	EX Deoxys	Uncommon	Reverse Holofoil	$7.35	3	Buy
Professor Cozmo's Discovery 90/107	EX Deoxys	Uncommon	Normal	$0.58	5	Buy
Professor Cozmo's Discovery 89/110	EX Holon Phantoms	Uncommon	Normal	$0.50	7	Buy
Professor Cozmo's Discovery 89/110	EX Holon Phantoms	Uncommon	Reverse Holofoil	$7.02	2	Buy
Professor Cozmo's Discovery 014/015 Japanese	Rayquaza Constructed Starter Deck	None	1st Edition	n/a	0	Buy
Professor Cozmo's Discovery 014/015 Japanese	Deoxys Constructed Starter Deck	None	1st Edition	n/a	0	Buy
Professor Cozmo's Discovery 014/015 Japanese	Deoxys Constructed Starter Deck	None	Unlimited	n/a	0	Buy
Professor Cozmo's Discovery 076/082 Japanese	Clash of the Blue Sky	Uncommon	Unlimited	n/a	0	Buy
Professor Cozmo's Discovery 076/082 Japanese	Clash of the Blue Sky	Uncommon	1st Edition	$0.35	0	Buy
Professor Cozmo's Discovery 009/015 Japanese	Lightning Quick Construction Pack	None	1st Edition	n/a	0	Buy
Professor Cozmo's Discovery 009/015 Japanese	Lightning Quick Construction Pack	None	Unlimited	n/a	0	Buy
Professor Cozmo's Discovery 009/015 Japanese	Fighting Quick Construction Pack	None	1st Edition	n/a	0	Buy
Professor Cozmo's Discovery 009/015 Japanese	Gift Box Mew - Lucario (Mightyena Quarter Deck)	None	Normal	n/a	0	Buy
Professor Cozmo's Discovery 017/024 Japanese	Shockwave! Tyranitar ex Constructed Standard Deck	None	1st Edition	$2.99	0	Buy

About this page

Prices are TCGplayer market prices, refreshed nightly. Sold counts are TCGplayer completed sales over the trailing 30 days. Japanese rows come from TCGplayer's Pokemon Japan catalog and use the English card name. Card images and Buy buttons open TCGplayer through our affiliate link; printing names open our own price history pages. Not financial advice.