It is the first piece that "Dragon type Legend Pokemon" should commemorate of writing with the day.
It seems to play an important role in the latest film of opening to the public this year.
By the way, the leading part class Pokemon is shaymin. ^^;
In Giratina, it is Another form for two kinds of appearances to exist, and to be registered in Pokedex when Diamond/Pearl is put on the market. Origin form to which it starts this year and the existence is revealed has not been drawn yet. I will draw today.
Because Another form is the right, Another form will be made the left. The appearance is a right and left reversing with the same Pokemon though it is not resembled.

Giratina Another form©2006 Pokemon/Nintendo/GAME FREAK/Creatures
Art by  caval (Yuki Koizumi)