PokeHills hosts an in-game store which you can use to stock up on items!
To access it, run
/shop and be greeted with the ability to shop anywhere!
The in-game shop currently sells the following:
All Type TMs
Commands (/back, /pc, /pokeheal)
Legendary Pokemon Items
The following additional categories are planned:
To figure out how to earn coins for the shop, visit Currencies.