Altering Cave

Altering Cave is located in Hoenn, and can be accessed from Route 103_2.

In order to access it, a player must buy an Altering Cave Ticket, which lasts 24 hours, for 600k from the salesman at the entrance.

Fishing in this area requires a fishing level of at least 45.

Wild Pokémon
Unlike other areas, Altering Cave's wild Pokémon level is equal to the average level of a player's party, rounded down.

Also unlike other areas, Pokémon in Altering Cave change everyday, as 2 Pokémon for every rarity and method are drawn from a pool of possible encounters.

And unlike other areas, wild Pokémon in Altering Cave does not drop any cash.

Unique drops
Every Pokémon in Altering Cave has a small chance to drop the following items:

Every Pokémon also has a very small chance to drop the following one-time, untradeable, unique items:

Altering Cave Scroll

Ancient Key (Loop Half)