Board Thread:General Discussion/@comment-27464043-20151230192612/@comment-34734493-20180410142011

Not necessarily. Don't forget Hela used it to revive an army of dead Asgardians and her wolf. And I think it's worth mentioning she chose it over the Tesseract, when she should have known exactly what is was. I'm pretty sure it was still around when she fought at Odin's side in his conquering days. Why would she choose something that's not as powerful as an Infinity Stone when there was one nearby? Also, there wasn't much emphasis on it to reveal it as an Infinity Stone since it wasn't the focus of the narrative (much like the Scepter in Avengers, where we only saw it control minds). It's entirely possible it has more powers than just reviving the dead.