This action figure was blocky and with stiff articulations. It was also used to create the Destroyer action figure as the character has the same function, to bust Thor. This toy was part of the Marvel Legends Modok series, the 15th wave of figures from Marvel Legends. It came with the left arm of the Modok build it yourself action figure. The Destroyer was, of course the variant.Although I didn't really like this toy - it's far from being a favourite of mine, it stands up quite well, unlike the Hasbro-made Ultimate Iron Man.
This toy has not been in production since about 2006, so it's relatively rare. However, you can probably find it at many comic book conventions around. It's only value for serious collectors, is for the Modok part. The Destroyer variant while rarer is not that great either and not really sought after.