Mareep is card #47 of 198 in Chilling Reign (2021), a Common illustrated by Miki Tanaka. At about $0.32 it is the #138 most valuable card in the set. In a Chilling Reign booster it turns up about once every 9 packs. It is one of 28 Mareep cards printed so far.
2000Neo Genesis
2003Aquapolis
2006Dragon Frontiers
2009Platinum
2011Call of Legends
2018Lost Thunder
2021Chilling Reign
2026Chaos Rising

















See the full Chilling Reign card list
An ungraded Mareep from Chilling Reign sells for about $0.32. A PSA 10 is worth more, roughly $1.12 by our estimate, and a PSA 9 around $0.64.
It is a Common, and it shows up about once every 9 Chilling Reign packs.
Miki Tanaka drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Chilling Reign 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.