As long as the number of Pokémon in play (both yours and your opponent's) that has Team Magma in its name is 3 or less, Team Magma's Groudon can't attack.
Attacks
Linear Attack
Choose 1 of your opponent's Pokémon. This attack does 20 damage to that Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)
50+Pulverize
If the Defending Pokémon already has at least 2 damage counters on it, this attack does 50 damage plus 20 more damage.
How much is Team Magma's Groudon #9/25 worth?
Right now (November 5, 2026) the going rate for an ungraded Team Magma's Groudon #9/25 from Celebrations: Classic Collection is about $1.80.
Grading changes the math on this one: a PSA 10 is valued around $80.00, roughly 44.4x the raw price, while a PSA 9 sits near $24.98. 3,622 copies have been graded to date, and 49% of them came back a 10 — worth knowing before you pay grading fees.
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.