Where is the relic stone in Pokemon Colosseum?

The Relic Stone is not a physical item in Pokemon Colosseum. It is a special move that can be taught to certain Pokemon, such as the legendary Pokemon Regirock, Regice, and Registeel.

The only way to obtain the Relic Stone in Pokemon Colosseum is to capture these three legendary Pokemon, which are found in specific locations:

* Regirock: Found in the Great Canyon, which can be accessed after obtaining the Rock Climbing technique.

* Regice: Found in the Ice Cave, which can be accessed after obtaining the Rock Smash technique.

* Registeel: Found in the Iron Island, which can be accessed after obtaining the Rock Climbing technique.

Once you capture these Pokemon, they will automatically know the Relic Stone move. You can then use this move in battle to inflict serious damage on your opponents!