There’s no way, no fucking way, this isn’t some sort of magic trick, wherein the guy doing this is swapping out cubes while you aren’t looking.
That or he travelled down to Hades, met with Lucifer himself, and offered up every single one of his children in exchange for the ability to do this.
Because no way in hell a normal human could just pull this off. Think of the fucking maws you’d need just to twist a row in one hand. No. No way.
That or he’s a robot.