If this Pokémon is Knocket Out by damage from an attack from your opponent's Pokémon, flip a coin. If heads, the Attacking Pokémon is Knocket Out.
Attacks
Chaotic Pain
Place 13 damage counters on 1 of your opponent's Pokémon.
How much is Gengar ex #90/128 worth?
Right now (November 14, 2026) the going rate for an ungraded Gengar ex #90/128 from 30th Celebration is about $1.13.
Grading changes the math on this one: a PSA 10 is valued around $51.37, roughly 45.5x the raw price, while a PSA 9 sits near $11.00. 11 copies have been graded to date, and 91% 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 Gengar ex has moved over time.