Below is a list of all Pokémon cards that have the Ability Happy Switch

Picture Card Name Set Details Card Details
Blissey ex Twilight Masquerade
134 / 167
300HP
WeaknessResistanceRetreat Cost
x2 
Blissey ex Twilight Masquerade
201 / 167
300HP
WeaknessResistanceRetreat Cost
x2