Grommash Hellscream ( alternate ) Grommash " Grom " Hellscream is the chieftain of the Warsong clan and father to Garrosh Hellscream , but not in the alternate timeline of Draenor where he was encountered again due to Garrosh redirecting the Dark Portal to an alternate past timeline . Garrosh prevented him from drinking the blood of Mannoroth the Destructor in this timeline . In Warlords of Draenor . Grommash Hellscream is the main antagonist of the fifth expansion to , where he acts as Chieftain of the Warsong Clan and Warchief of the Iron Horde . Grom was saved by his son , Garrosh , from his ill - fated death . Originally , he was confirmed by Blizzard to be the final boss in the final expansion raid ( presumed to be ) , but it was all changed during development as the final boss turned out to be Archimonde . Alerted by Garrosh of Gul ' dan ' s treachery , Grom agreed with a plan to force Manoroth into revealing himself by rejecting the offer . Having seen the pit lord ' s arrogance through the vision of time , Garrosh informed his father ( though Grom was oblivious to their relation ) that Manoroth would kill anyone who disobeyed . He urged him to use the technology he had brought to the past to defeat the pit lord , foil the demons plan and unite the Orcs against their true foe : Azeroth of the present . Grom therefore acted like he would drink , but after glancing at Garrosh , asked Gul ' dan what the orcs would have to give in return ( possibly implying he needed confirmation from the mastermind ) and when Gul ' dan stated " Everything " , Grom simply poured the blood of Manoroth onto the ground . This instantly earned him Manoroth ' s anger , who intended to kill Grom for the rejection . Grom simply smiled cruelly as Garrosh launched fireballs at the pit lord to distract him and then pinned the demon with two ballistae . Just before the iron star could fire on Manoroth and kill him , the pit lord broke out of his ballistae chains and began to pummel the Orcs . With the iron star unmanned , Grom reached the weapon and tried to aim it correctly , but thanks to its poor accuracy regardless of who manned it , it simply rolled and exploded nearby , creating a cloud of fire and smoke which hindered Manoroth ' s vision . Grom jumped through the smoke and flame , plunging Gorehowl straight into the furious pit lord ' s forehead . Garrosh managed to save Grom from the majority of the blast as Manoroth exploded and after briefly mocking Gul ' dan , Garrosh threw Gorehowl to Grom . Turning to the orcs , Grom proclaimed that they would never be slaves to anyone , but that if they joined him , they would be conquerors . Grommash took credit for foiling the plot and nearly all of the Draenor Orcs joined him . He declared himself Warchief of the Iron Horde . In return for his assistance , Grom appointed Garrosh to rule the Warsong in his stead , giving Garrosh Gorehowl ( as he is never seen with the axe afterwards , save once and very briefly ) . It is not clear how many Orcs joined the Iron Horde willingly , or if Grom forced them , but the majority did so voluntarily . Building a large fortress in the middle of Tanaan Jungle and creating the Dark Portal , Grom sent armies to destroy the Frostwolves , who were led by Durotan , and to annihilate the Draenei under Velen ' s leadership . After a brief invasion through the dark portal to Azeroth , the Iron Horde were repelled back through to the Draenor side . A group of heroes from Azeroth launched their own attack through the portal , freeing enslaved shadow council members who were being used to power the dark portal , and ultimately destroying the portal itself . With his armies on Azeroth destroyed and the Shadow Council free , Grom went with the other chieftains to Tanaan Jungle and decided to give the adventurers a warm Orcish welcome with a proclamation . He warned the adventurers , before ordering his Iron Horde to destroy them . Grom then approached Ner ' zhul , giving he and the Shadowmoon a choice : join the Iron Horde or die . Since the Shadowmoon did not have anything that interested him , Grom presented a second ultimatum : bring him something that could significantly help the Iron Horde , or he would kill them anyway . Ner ' zhul , fearing for his clan , chose to summon the dark star and launched attacks on the Draenei , enslaving several and taking women and children to sacrifice as part of the summoning ritual . The Shadowmoon began to suffer setbacks when they were attacked by Azeroth adventurers who were upsetting their operations and had freed several slaves , among them Yrel , a Draenei priestess . This did not stop the Dark Star , and Ner ' zhul reported to his master on the Dark Star ' s position and its potential strength . Pleased with what the Dark Star could do , Grom departed through the portal . The summoning ritual was ultimately stopped by Velen sacrificing himself to purify the Dark Star , but the Draenei became furious when they discovered dozens of their children ( including Samarra , the sister of Yrel ) had been killed in the summoning ritual . When Yrel and the Draenei under her command learned that Grom had blackmailed Ner ' zhul into summoning the Dark Star , it only added to their anger . Realizing that Grom would try to kill him , Ner ' zhul decided to cut his losses and fled , leaving Grom ' s army and navy to be slaughtered by the adventurers , Yrel , the Draenei forces and the newly purified Naaru , K ' ara . Grom suffered another serious blow when adventurers stormed Nagrand and killed Garrosh , his own advisor and the person who had made this all possible . Eventually , Gul ' dan approached Grom and mocked him for the debacles the Iron Horde had endured . He also revealed that his son , Garrosh , was dead and threw Gorehowl to the ground to confirm it . He then offered him the option to drink the demon blood again . Grom refused due to the emotions surrounding his son ' s fall , and also to preserve his honor , choosing to attack Gul ' dan instead . Gul ' dan stopped him with magic and imprisoned him , offering the remaining orcs the same choice to drink ; Kilrogg accepted despite Grom ' s pleas . It is unknown what happened to Grom after this event , but it is possible he escaped . Differences from the original timeline Grommash . It is assumed that both the original and this alternate version of Grommash share a common history up to the moment that Garrosh Hellscream arrived on Draenor from our timeline , to begin changing its history . However , there is no evidence that Garrosh Hellscream or Golka , who were his son and his mate in the original timeline , exist on this version of Draenor . It is therefore possible that there are other unknown discrepancies between the two versions of Grommash , which existed prior to Garrosh ' s arrival . Encounters on Draenor . Players encounter Grommash shortly after they arrive on Draenor , as they fight to escape Tanaan Jungle during the Assault on the Dark Portal scenario . Grommash appears on a ridge , surrounded by his other warlords and threatens the Azerothian insurgents . From time to time throughout the Draenor campaign , Grommash makes appearances as part of various zone storylines and is present when the army from Azeroth breaches the Iron Horde ' s defences , pushing their way back into the Tanaan Jungle . Players once again encounter Grommash within Hellfire Citadel , where he has been captured by Gul ' dan and the demons of the Burning Legion . Players free Grommash by defeating his jailor Fel Lord Zakuun , and Grommash returns later in the raid to assist players in the final battle against Archimonde .