Houndoom is card #H11 of 147 in Aquapolis (2003), a Rare Holo illustrated by Hajime Kusajima. At about $1,572 it is the #1 most valuable card in the set. In an Aquapolis booster it turns up about once every 84 packs. It is one of 45 Houndoom cards printed so far.
4 copies have been graded by players in Holobrook's grading game. None has come back a 10 yet.
POP 1 is still open for PSA, BGS and CGC: the first player to grade this card a 10 with each company gets a one-of-a-kind POP 1 slab. See the Mint
2001Neo Discovery
2003Aquapolis
2004Team Magma vs Team Aqua
2009Platinum
2012Dragons Exalted
2015BREAKthrough
2019SWSH Black Star Promos
2022Brilliant Stars Trainer Gallery

















See the full Aquapolis card list
An ungraded Houndoom from Aquapolis sells for about $1,572. A PSA 10 is worth more, roughly $20,436 by our estimate, and a PSA 9 around $6,288.
It is a Rare Holo, and it shows up about once every 84 Aquapolis packs.
Hajime Kusajima drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Aquapolis booster packs in your browser with the set's real pull rates and keep what you pull in a digital binder. No real cards, nothing to buy.