With Honour and Respect: The Search For Regigigas

The offer of being able to visit the insides of the sacred Snowpoint Temple is only available to those who have the approval of Candice the Gym Leader of the City. Of course, this means that once you have beaten her in a match, you will most likely be allowed entry to the Temple. Once inside, you can find some unique Pokémon, but also on the lower floor, there is a shrine dedicated to Regigigas. And should you venture inside, Regigigas will appear to you. What you choose to do next is totally up to you. You may choose to battle with the Regigigas, but under no circumstances is this Regigigas able to be caught.

You must have defeated Candice in the Snowpoint City Icicle Gym before the attendants will even let inside the Temple, let alone let you attempt this challenge. Depending on how you handle this situation, Regigigas may choose to allow one of your Pokémon to learn Giga Impact. There is also the possibility of receiving a Earth Plate from it. If you wish to take on this challenge, say so in the post you make when entering the Temple.