You may return all Energy cards attached to Dialga to your hand. If you do, remove the highest Stage Evolution card from the Defending Pokémon and shuffle that card into your opponent's deck.
“It has the power to control time. It appears in Sinnoh-region myths as an ancient deity.”
How much is Dialga #1/130 worth?
Dialga #1/130 is a Rare Holo card from Diamond & Pearl (2007) — today it trades at roughly $9.49 ungraded.
Grading changes the math on this one: a PSA 10 is valued around $1,095.00, roughly 115.4x the raw price, while a PSA 9 sits near $912.36. 305 copies have been graded to date, and 2% 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.