I'll provide not only theory but also evidence from recent tournaments & current ranked play from this season + last season to back up this claim. In this very long winded post I will break down how the introduction of RNG strategies bit-by-bit has slowly began to shape OU into an RNG hell hole.   *I have tried to find at least 1 video example for each point here, but the video may not correlate directly with the point made since I do not record every single duel which I play lol