In the opening scene after Thanos breaks the tesseract, one the his kids say that he is the first person to ever wield two infinite stones at the same time.
But didn't Loki technically do that in the first Avengers. He came to Earth with the mind stone which powered his scepter to control people's minds when they tapped their chest. And he stole the space stone which powered the tesseract.
Dammit now I have to rewatch that movie to see if he ever has both items in his hands at the same time.![]()
yeah he did