Slowbro is card #38 of 90 in HS—Undaunted (2010), a Uncommon illustrated by Kagemaru Himeno. At about $44.36 it is the #21 most valuable card in the set. In a HS—Undaunted booster it turns up about once every 8 packs. It is one of 27 Slowbro cards printed so far.
1999Fossil
2002Neo Destiny
2005Unseen Forces
2010HeartGold & SoulSilver
2017Guardians Rising
2020Darkness Ablaze
2023Scarlet & Violet
2026Pitch Black

















See the full HS—Undaunted card list
An ungraded Slowbro from HS—Undaunted sells for about $44.36. A PSA 10 is worth more, roughly $355 by our estimate, and a PSA 9 around $124.
It is a Uncommon, and it shows up about once every 8 HS—Undaunted packs.
Kagemaru Himeno drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open HS—Undaunted 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.