Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.
PSA 10 price history$171.03
PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.
Abilities
Shuffle
Once during your turn (before your attack), you may search your deck for another Unown and switch it with Unown. (Any cards attached to Unown, damage counters, Special Conditions, and effects on it are now on the new Pokémon.) If you do, put Unown on top of your deck. Shuffle your deck afterward. You can't use more than 1 Shuffle Poké-Power each turn.
Attacks
10Hidden Power
The Defending Pokémon is now Asleep.
How much is Unown #Y/115 worth?
A raw copy of Unown #Y/115 (Unseen Forces, 2005) is worth about $43.30 right now, based on the latest market data from August 14, 2026.
Grading changes the math on this one: a PSA 10 is valued around $171.03, roughly 3.9x the raw price, while a PSA 9 sits near $68.54.
These figures come from nightly market-data syncs verified against completed sales. Use the chart above to see the trend before you buy or sell.
Unseen Forces · #Y/115 · Rare · 2005
