A Master Ball card is a regular card with a shiny Master Ball pattern. The card itself is identical to the regular version; only the foil treatment differs. That is exactly why there is such a big difference in value between one Pokémon and another.
Pokémon 151 (SV2a)
The most expensive Master Ball cards, ungraded (PriceCharting, October 8, 2026):
- Gengar (#94): about €508
- Pikachu (#25): about €234
- Psyduck (#54): about €118
- Dragonite (#149) and Haunter (#93): about €84
- Magikarp (#129): about €83
- Mewtwo (#150): about €79
- Gyarados (#130): about €68
- Slowpoke (#79): about €67
- Gastly (#92): about €50
- Aerodactyl (#142): about €47
Our list of the most expensive 151 cards includes eleven Master Ball variants of €47 or more. Most of the 153 are worth a lot less, often a few euros.
Other sets
- Terastal Festival ex (SV8a): Umbreon Master Ball (#092), about €55.
- Black Bolt (SV11B): Victini Master Ball (#12), about €40.
Why such a difference?
The Pokémon sets the price. Gengar, Pikachu and Psyduck have a large following, and a card that normally costs next to nothing becomes a collector's item with a Master Ball pattern. Notably, Gengar Master Ball is worth more than the Charizard ex SAR from the same set (about €295).
What does that mean for a box?
Every Japanese 151 box contains one Master Ball card, randomly from 153. The chance that it is Gengar is 1 in 153 on average. So don't count on the top of this list; most boxes give you a Master Ball card of a less sought-after Pokémon.