If Magneton and the Defending Pokémon don't have the same number of Energy cards attached to them, the player controlling the Active Pokémon with the fewest number of Energy cards attached to it switches 1 of his or her Benched Pokémon with his or her Active Pokémon.
30+Magnetic Wave
This attack does 30 damage plus 10 damage times the number of your Benched Pokémon minus the number of your opponent's Benched Pokémon. (For example, if your opponent has 1 Benched Pokémon and you have 3, this attack will do 30 damage plus 20 more damage.)
How much is Magneton #20/144 worth?
As of November 5, 2026, Magneton #20/144 from Skyridge sells for around $38.54 in raw, ungraded condition. Across the 2 printings we track, copies run anywhere from $49.99 to $462.68 depending on the version you're holding.
Grading changes the math on this one: a PSA 10 is valued around $401.22, roughly 10.4x the raw price, while a PSA 9 sits near $167.03. 117 copies have been graded to date, and 29% 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.