Giratina is in Altered form in Pokemon Diamond and Pokemon Pearl in Turnback cave. In Pokemon platinum, Giratina is in origin forme only when he is in the disrotation word, and Giratina's origin form that will not affect aginst ground type pokemon! When giratina is outside of the ditrotation world, Giratina is in altred forme and it's abilty is pressure! If you pre ordered pokemon platinum, you will recive a free Giratina origin forme figurine.
