So apparently Grom 1v1 defeated Cenarius as per the Warcraft Chronicle.Its said that even the Forest Lord could not stand against the Orc's supernatural might.He did this by drinking Mannoroth's blood,the same Mannoroth who couldn't beat Cenarius on his own.Either Grom gfot a huge buff or Cenarius got a huge nerf.Or has Demon blood been buffed.
Also didn't Nobundo beat Grom when he was still an Exarch/Vindicator ?