McDonald's Collection 2015MCD15 5
Mudkip
No price for this printing yet. That is not the same as worthless — the feed simply has no listing for it.
19 printings of Mudkip
They range from $0.25 to $37.11 — a 148× 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.
XY Black Star Promos
XYP XY38—
Nintendo Black Star Promos
NP 5—
Nintendo Black Star Promos
NP 10—
Nintendo Black Star Promos
NP 18—
POP Series 4
POP4 11$37.11
Great Encounters
DP4 80$11.12
Emerald
EX9 56$9.29
Ruby & Sapphire
EX1 59$8.95
Dragon
EX3 65$6.99
Crystal Guardians
EX14 58$4.63
Supreme Victors
PL3 116$3.33
Ruby & Sapphire
EX1 60$2.87
Crystal Guardians
EX14 57$2.61
McDonald's Collection 2021
MCD21 19$1.07
Celestial Storm
SM7 32$0.61
Primal Clash
XY5 33$0.46
Celestial Storm
SM7 33$0.45
Fusion Strike
SWSH8 62$0.25