What we have here might be Giratina's Second Form...called 'Another'
These stickers came in Coro Coro...they have Giratina, then Origin Form...then this 'Another' Form. The only thing that's different is the wings though.
Could this be the ?
EDIT: So, Bulbapedia says Another Form is the Giratina we see in the game..but I disagree with that...the wings are different. D:
the wings are able to change form, if you search in youtube for giratina in pokemon battle revolution you will see it.
the first form we see in D/P game is actualy the second form...