# Custom Items

- [Mega Stones](/custom-items/mega-stones.md): These items are used to mega evolve your pokemon! Remember, you need a keystone to be able to mega evolve!
- [Z Crystals](/custom-items/z-crystals.md): These items are used to allow your Pokémon to use z moves! Remember, you need a Z-Band to be able to use them!
- [Cosmetics](/custom-items/cosmetics.md): A list of all custom cosmetics that have been added to Frontier during special events and celebrations.
- [Key Items](/custom-items/key-items.md): These items allow you to perform gimmicks
- [Spawn Items](/custom-items/spawn-items.md): These items are used to spawn Pokémon based on certain criteria.