Trainers » Heavy Ball | Trainers » Level Ball | Gameplay » V-UNION Pokemon
Can I use Heavy Ball or Level Ball to search for a Pokemon V-UNION card?
No you can't. Even if a Pokemon V-UNION has a Retreat Cost of 3 or more when it's fully assembled, you still can't search for any of the parts with Heavy Ball. And even though some of the parts don't have any HP listed, you still can't search for them with Level Ball.
Source: TPCi Rules Team (2021-09-30)