There are genuine cards out there but reading up on Mr Palitoys site the bubble on yours is a classic TT..
"Toni used rectangular bubbles with square corners and these are the correct bubbles for some of these figures like C-3P0 (Removable Limbs), Imperial Stormtrooper (Hoth Battle Gear) and Chewbacca. Not for Luke Skywalker (Hoth Battle Gear) where a Tri-Logo style bubble is used on the genuine card. Imperial Stormtrooper (Hoth Battle Gear) can also be found with a Tri-Logo style bubble"
Yours has a rectangular bubble with rounded corners.