Welcome to my little shop of wonders, friends! Many of the Pokemon here are what Lillian has bred or has caught and has no use for. Price varys on rarity and level, and may increase due to training the Pokemon or decrease due to needing to make space. Items found or bought by Lillian that she doesn't want or need anymore tend to work the same way.
Make sure to check back frequently to check for updates of the thread. Haggling or offered something else in return for what you want is welcomed!