Every Quagsire card we price, most valuable first. Prices are what copies actually sold for, updated daily.
What a Quagsire card is worth
The most valuable Quagsire on this list is Quagsire from EX Team Rocket Returns at $134.05£100.89€118.05, and the 16 priced copies across 16 sets are worth $508£382€447 together. Most of that sits in a handful of printings: the older the set and the scarcer the print run, the wider the gap to the rest.
Quagsire is printed in Japanese as well: 17 cards across 15 sets, the most valuable of them Quagsire from The Town on No Map at $36£27.10€31.70. Switch the list above to Japanese to read those, or to Both to rank the two catalogues against each other.
The highest PSA 10 on record for Quagsire sold for $14,988£11,281€13,199. 1st Edition and reverse holo printings are priced separately from the standard card, because they do not trade at the same money.
If you are trying to identify which Quagsire you have, the set name is printed on the card and the collector number sits in the bottom corner. Open the card here and the page carries every printing of it, the graded prices, and whether grading the copy is worth the fee. Sets to start with: EX Team Rocket Returns, Aquapolis, EX Dragon Frontiers.