Grimer is card #50 of 90 in HS—Undaunted (2010), a Common illustrated by Midori Harada. At about $5.09 it is the #69 most valuable card in the set. In a HS—Undaunted booster it turns up about once every 5 packs. It is one of 25 Grimer cards printed so far.
1999Fossil
2002Legendary Collection
2006Legend Maker
2009Platinum
2010HS—Undaunted
2013Plasma Freeze
2017Sun & Moon
2022Brilliant Stars

















See the full HS—Undaunted card list
An ungraded Grimer from HS—Undaunted sells for about $5.09. A PSA 10 is worth more, roughly $40.72 by our estimate, and a PSA 9 around $14.25.
It is a Common, and it shows up about once every 5 HS—Undaunted packs.
Midori Harada 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.