Flip a coin. If heads, the Defending Pokémon is now Asleep.
Metronome
Choose 1 of the Defending Pokémon's attacks. Metronome copies that attack except for its Energy costs and anything else required in order to use that attack, such as discarding Energy cards. (No matter what type the Defending Pokémon is, Clefairy's type is still Colorless.)
“Its magical and cute appeal has many admirers. It is rare and found only in certain areas.”
How much is Clefairy #6/130 worth?
Clefairy #6/130 is a Rare Holo card from Base Set 2 (2000) — today it trades at roughly $24.84 ungraded.
Grading changes the math on this one: a PSA 10 is valued around $677.40, roughly 27.3x the raw price, while a PSA 9 sits near $190.64. 3,775 copies have been graded to date, and 1% of them came back a 10 — worth knowing before you pay grading fees.
Prices on this page refresh nightly from live TCGplayer market data and are cross-checked against actual sold prices, so a single inflated listing never becomes "the price". The chart above has the full history.