Dewgong

No price for this printing yet. That is not the same as worthless — the feed simply has no listing for it.

16 printings of Dewgong

They range from $0.08 to $49.98 — a 625× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.

Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.

Phantasmal Flames
ME2 97—
Skyridge
ECARD3 H6—
Skyridge
ECARD3 7$49.98
FireRed & LeafGreen
EX6 3$39.00
Base
BASE1 25$3.75
Supreme Victors
PL3 24$2.60
Legendary Collection
BASE6 40$2.34
Base Set 2
BASE4 36$1.71
Mysterious Treasures
DP2 45$0.44
Unbroken Bonds
SM10 45$0.40
Fates Collide
XY10 16$0.29
Evolutions
XY12 29$0.24
Lost Origin
SWSH11 34$0.15
151
SV3PT5 87$0.14
Phantasmal Flames
ME2 22$0.08