Mareep is card #93 of 147 in Aquapolis (2003), a Common illustrated by Hizuki Misono. At about $67.39 it is the #83 most valuable card in the set. In an Aquapolis 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 Aquapolis card list
An ungraded Mareep from Aquapolis sells for about $67.39. A PSA 10 is worth more, roughly $876 by our estimate, and a PSA 9 around $270.
It is a Common, and it shows up about once every 9 Aquapolis packs.
Hizuki Misono 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.