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
Hidden Power
If the Defending Pokémon has a Poké-Power or a Poké-Body, choose up to 2 basic Energy cards attached to 1 of your opponent's Pokémon and attach them to the Defending Pokémon.
How much is Unown #S/115 worth?
Right now (November 5, 2026) the going rate for an ungraded Unown #S/115 from Unseen Forces is about $61.24.
Grading changes the math on this one: a PSA 10 is valued around $300.00, roughly 4.9x the raw price, while a PSA 9 sits near $113.73.
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.