As often as you like during your turn (before your attack), you may attach 1 Water Energy card to 1 of your Water Pokémon. (This doesn't use up your 1 Energy card attachment for the turn.) This power can't be used if Blastoise is Asleep, Confused, or Paralyzed.
Attacks
40+Hydro Pump
Does 40 damage plus 10 more damage for each Water Energy attached to Blastoise but not used to pay for this attack's Energy cost. Extra Water Energy after the 2nd doesn't count.
“A brutal Pokémon with pressurized water jets on its shell. They are used for high-speed tackles.”
How much is Blastoise #2/25 worth?
Blastoise #2/25 is a Classic Collection card from Celebrations: Classic Collection (2021) — today it trades at roughly $13.98 ungraded.
Grading changes the math on this one: a PSA 10 is valued around $123.00, roughly 8.8x the raw price, while a PSA 9 sits near $44.33. 40,745 copies have been graded to date, and 62% 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 Blastoise has moved over time.