Which Kingdra 1st Edition Holofoil do you have?
Same name, 53× the price: $6.18 to $328 raw. The difference is printed on the card — it is just not somewhere most people think to look.
Wind from the Sea · #089
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$328
40% gem
Wind from the Sea · #042
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$102
50% gem
Reviving Legends · #015
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$47
44% gem
Rocket Gang Strikes Back · #032
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$28
54% gem
Tidal Storm · #053
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$14
61% gem
Spiral Force · #038
Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them.
$6.18
69% gem
We have no hand-checked note for these printings yet, so the guidance above is the general rule rather than something specific to this card.
Prices are raw market value. Click a printing for its full grading verdict — the gem rate, the fees and whether it beats selling raw.