| 01 |  Mega Gengar ex
#284 · Special Illustration Rare | Ascended Heroes | 829,59 € |
| 02 |  Gengar
#H9 · Rare Holo | Skyridge | 442,86 € |
| 03 |  M Gengar-EX
#121 · Rare Secret | Phantom Forces | 314,40 € |
| 04 |  Gengar
#20 · Rare | Fossil | 158,75 € |
| 05 |  Sabrina's Gengar
#29 · Rare | Gym Challenge | 144,59 € |
| 06 |  M Gengar-EX
#XY166 · Promo | XY Black Star Promos | 141,67 € |
| 07 |  M Gengar-EX
#35 · Rare Holo EX | Phantom Forces | 126,75 € |
| 08 |  Sabrina's Gengar
#14 · Rare Holo | Gym Heroes | 83,35 € |
| 09 |  Mega Gengar ex
#269 · MEGA_ATTACK_RARE | Ascended Heroes | 51,01 € |
| 10 |  Dark Gengar
#6 · Rare Holo | Neo Destiny | 46,87 € |
| 11 |  Gengar LV.X
#97 · Rare Holo LV.X | Arceus | 36,83 € |
| 12 |  Gengar
#TG06 · Trainer Gallery Rare Holo | Lost Origin Trainer Gallery | 34,81 € |
| 13 |  Gengar
#5 · Rare Holo | Fossil | 29,47 € |
| 14 |  Gengar
#SWSH052 · Promo | SWSH Black Star Promos | 2,91 € |
| 15 |  Mega Gengar ex
#125 · Double Rare | Ascended Heroes | 2,80 € |
| 16 |  Mega Gengar ex
#56 · Double Rare | Phantasmal Flames | 1,85 € |
| 17 |  Gengar
#50 · Rare | Perfect Order | 0,45 € |
| 18 |  Gengar
#SWSH241 · Promo | SWSH Black Star Promos | 0,02 € |
| 19 |  Gengar & Mimikyu-GX
#165 · Rare Ultra | Team Up | 1571,30 USD |
| 20 |  Gengar ex
#108 · Rare Holo EX | FireRed & LeafGreen | 1399,99 USD |
| 21 |  Gengar VMAX
#271 · Rare Rainbow | Fusion Strike | 1011,30 USD |
| 22 |  Gengar-EX
#114 · Rare Ultra | Phantom Forces | 749,53 USD |
| 23 |  Gengar
#13 · Rare Holo | Expedition Base Set | 670,39 USD |
| 24 |  Gengar
#10 · Rare | Skyridge | 499,99 USD |
| 25 |  Gengar
#94 · Rare Prime | HS—Triumphant | 493,44 USD |
| 26 |  Gengar & Mimikyu-GX
#186 · Rare Rainbow | Team Up | 376,10 USD |
| 27 |  Gengar & Mimikyu-GX
#53 · Rare Holo GX | Team Up | 343,06 USD |
| 28 |  Gengar & Mimikyu-GX
#164 · Rare Ultra | Team Up | 318,03 USD |
| 29 |  Gengar
#48 · Rare | Expedition Base Set | 167,07 USD |
| 30 |  Gengar
#11 · Rare Holo | Legendary Collection | 160,00 USD |
| 31 |  Gengar
#5 · Rare Holo | Legend Maker | 130,66 USD |
| 32 |  Gengar-EX
#34 · Rare Holo EX | Phantom Forces | 88,71 USD |
| 33 |  Gengar
#27 · Rare | Diamond & Pearl | 73,21 USD |
| 34 |  Gengar ex
#193 · Ultra Rare | Temporal Forces | 64,69 USD |
| 35 |  Gengar
#18 · Rare | Stormfront | 60,03 USD |
| 36 |  Gengar
#17 · Rare | Arceus | 56,67 USD |
| 37 |  Gengar VMAX
#157 · Rare Holo VMAX | Fusion Strike | 50,85 USD |
| 38 |  Gengar
#16 · Rare | Arceus | 41,31 USD |
| 39 |  Gengar
#35 · Rare Holo | Generations | 36,62 USD |
| 40 |  Gengar
#60 · Rare Holo | BREAKthrough | 36,51 USD |
| 41 |  Gengar
#38 · Rare Holo | Crimson Invasion | 23,91 USD |
| 42 |  Gengar
#70 · Rare | Unbroken Bonds | 22,70 USD |
| 43 |  Gengar GL
#40 · Uncommon | Rising Rivals | 21,13 USD |
| 44 |  Gengar V
#156 · Rare Holo V | Fusion Strike | 11,64 USD |
| 45 |  Gengar ex
#104 · Double Rare | Temporal Forces | 7,48 USD |
| 46 |  Gengar
#85 · Rare Holo | Sword & Shield | 6,90 USD |
| 47 |  Gengar
#66 · Rare Holo | Lost Origin | 4,31 USD |
| 48 |  Gengar
#57 · Rare Holo | Chilling Reign | 3,39 USD |
| 49 |  Gengar
#94 · Rare | 151 | 2,85 USD |
| 50 |  Gengar
#57 · Uncommon | Paldean Fates | 0,34 USD |