When you play Magneton from your hand to evolve 1 of your Pokémon, you may move any number of basic Energy cards attached to your other Pokémon to Magneton.
Attacks
40Electric Blast
You may discard all Lightning Energy cards attached to Magneton when you use this attack. If you do, put damage counters equal to the amount of Energy cards removed in this way on any number of your opponent's Benched Pokémon in the way you like. (For example, if you discard 3 Lightning Energy cards, you can put 1 damage counter on 1 of your opponent's Benched Pokémon and 2 on another.)
How much is Magneton #H18/144 worth?
Right now (November 5, 2026) the going rate for an ungraded Magneton #H18/144 from Skyridge is about $99.99.
Grading changes the math on this one: a PSA 10 is valued around $3,500.00, roughly 35.0x the raw price, while a PSA 9 sits near $1,620.16. 623 copies have been graded to date, and 13% 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.