The Defending Pokémon can't retreat during your opponent's next turn.
10Mirage
If the Defending Pokémon tries to attack during your opponent's next turn, your opponent flips a coin. If tails, that attack does nothing.
How much is Misty's Seel #91/132 worth?
Misty's Seel #91/132 is a Common card from Gym Challenge (2000) — today it trades at roughly $1.17 ungraded. Across the 2 printings we track, copies run anywhere from $0.50 to $29.99 depending on the version you're holding.
Grading changes the math on this one: a PSA 10 is valued around $56.08, roughly 47.9x the raw price, while a PSA 9 sits near $16.05. 479 copies have been graded to date, and 37% of them came back a 10 — worth knowing before you pay grading fees.
We update this valuation every night from live market data and verify it against real completed sales — see the chart above for how Misty's Seel has moved over time.