Hi,i've no idea of which one is the rarest!
but my shiels seems to be rare!
Your shields are certainly rare but not the rarer item of the line. In Japan they only get 6 shields and in Europa we get 12 (the 6 from Japan and 6 only for us) After years of collecting Dragonautes/Battle Beasts/Beastformers I only miss one shield (the black panther)
In fact it's easier to get them in France. I wonder even if this shields were not only released in France !
Arno found some times ago a lot of 5 blisters. I took 2 of them. There is the pictures.
Sylvain