Unown [K] is card #68 of 132 in Secret Wonders (2007), a Uncommon illustrated by Daisuke Ito. At about $24.65 it is the #24 most valuable card in the set. In a Secret Wonders booster it turns up about once every 12 packs. It is one of 96 Unown cards printed so far.
1999Wizards Black Star Promos
2001Neo Discovery
2005Unseen Forces
2007Secret Wonders
2010HeartGold & SoulSilver
2015Ancient Origins
2022Silver Tempest
202630th Celebration

















See the full Secret Wonders card list
An ungraded Unown [K] from Secret Wonders sells for about $24.65. A PSA 10 is worth more, roughly $197 by our estimate, and a PSA 9 around $69.02.
It is a Uncommon, and it shows up about once every 12 Secret Wonders packs.
Daisuke Ito drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Secret Wonders 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.