Poliwag is card #125 of 165 in Expedition Base Set (2002), a Common illustrated by Yuka Morii. At about $45.54 it is the #100 most valuable card in the set. In an Expedition Base Set booster it turns up about once every 9 packs. It is one of 19 Poliwag cards printed so far.
1999Base Set
2001Neo Discovery
2002Expedition Base Set
2003Skyridge
2005Unseen Forces
2014Furious Fists
2017Sun & Moon
2022Lost Origin

















See the full Expedition Base Set card list
An ungraded Poliwag from Expedition Base Set sells for about $45.54. A PSA 10 is worth more, roughly $592 by our estimate, and a PSA 9 around $182.
It is a Common, and it shows up about once every 9 Expedition Base Set packs.
Yuka Morii drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Expedition Base Set 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.