This is a series 3 Skylander and will work with Swap Force but won't work with Giants of Spyro's Adventure.
This Lightcore characters is pretty cool as it lights up and has a slightly different skill set to the regular Grim Creeper. Also, as this is a Legendary character, so it has slightly elevated stats to the standard Grim Creeper. Like all Skylanders, you don't need to unbox him to play, so if you want to keep him in great condition, just pop him on the portal in his packaging and he'll work fine. You won't get the collector's card if you do that though.
As this Legendary character (along with the Legendary Free Ranger Skylanders SWAP Force Legendary Free Ranger
BEWARE- Wrong Free Ranger photo used, and this is a Toys & Games link, so look in PC & Video Games too) is a Toys r Us exclusive, if bought anywhere else you will pay an inflated price, so beware. Previously Legendary, exclusive characters have appreciated in value when kept mint, and I don't see why Grim should be any different, so if you keep him boxed and mint, you'll get your money back and then some. (But not if you part-exchange him at Cex or Game or wherever.)
Great value if bought at the correct price.