Chansey is card #69 of 127 in Platinum (2009), a Common illustrated by Kouki Saitou. At about $7.03 it is the #73 most valuable card in the set. In a Platinum booster it turns up about once every 9 packs. It is one of 25 Chansey cards printed so far.
1999Base Set
2003Ruby & Sapphire
2005Unseen Forces
2009Platinum
2010HeartGold & SoulSilver
2014Phantom Forces
2018Lost Thunder
2021Fusion Strike

















See the full Platinum card list
An ungraded Chansey from Platinum sells for about $7.03. A PSA 10 is worth more, roughly $56.24 by our estimate, and a PSA 9 around $19.68.
It is a Common, and it shows up about once every 9 Platinum packs.
Kouki Saitou drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Platinum 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.