Question: what is the difference between owned and unowned pokemon?
Answer: Owned Pokémon will cost 100 Stardust while unowned Pokémon will cost 20,000 Stardust. After a Trainer becomes Good Friends with another Trainer, they will be able to trade Shiny, Legendary, and Regional Pokémon. ... However, the unowned Regional and other Pokémon are a much more manageable 20,000 Stardust.