Clefairy is card #53 of 115 in Unseen Forces (2005), a Common illustrated by Midori Harada. At about $73.66 it is the #41 most valuable card in the set. In an Unseen Forces booster it turns up about once every 6 packs. It is one of 39 Clefairy cards printed so far.
1999Base Set
2004FireRed & LeafGreen
2005Unseen Forces
2007Secret Wonders
2013Plasma Storm
2016Generations
2020Rebel Clash
2023Obsidian Flames

















See the full Unseen Forces card list
An ungraded Clefairy from Unseen Forces sells for about $73.66. A PSA 10 is worth more, roughly $958 by our estimate, and a PSA 9 around $295.
It is a Common, and it shows up about once every 6 Unseen Forces packs.
Midori Harada drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Unseen Forces 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.