Below is a list of all Pokémon cards that have the Ability Gnawing Curse

Picture Card Name Set Details Card Details
Gengar ex Temporal Forces
104 / 162
310HP
WeaknessResistanceRetreat Cost
x2 
Gengar ex Temporal Forces
193 / 162
310HP
WeaknessResistanceRetreat Cost
x2 
Gengar Crimson Invasion
38 / 111
130HP
WeaknessResistanceRetreat Cost
x2 -20