Which Zygarde GX do you have?
Same name, 36× the price: $2.76 to $98 raw. The difference is printed on the card — it is just not somewhere most people think to look.
SM-P Promos · #216
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.
$98
62% gem
Forbidden Light Japanese · #104
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.
$65
45% gem
GX Ultra Shiny · #225
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.
$40
71% gem
Hidden Fates · #SV65
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.
$37
61% gem
Forbidden Light · #73
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.
$9.08
50% gem
Forbidden Light Japanese · #096
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.
$7.94
57% gem
Sun & Moon Black Star Promo · #SM122
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.
$6.25
<0.1% gem
Forbidden Light Japanese · #050
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.
$2.76
67% 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.