How can I change the form of Deoxys in Pokémon X and Y? In previous games there are meteorites that, upon touching, cause its form to change. Is there something similar to this in Pokémon X and Y?
From serebii: http://www.serebii.net/xy/bankunlocks.shtml
In the Fossil Lab in Ambrette Town, in the north-west part of the lab you will find various Meteorites. Four of these meteorites will allow you to change Deoxys' form between its four forms: Normal, Attack, Defense and Speed Formes.