Ruby Void < onlyinclude > < / onlyinclude > Ruby Void is a Lich King heroic achievement needed for the Glory of the Hero achievement , rewarding the Reins of the Red Proto - Drake . Strategies . 5 Amber Drakes . This strategy requires perfect group coordination to pull off . One person is designated to start the pull . The other four activate their temporal rifts as Eregos flies past ( this will not engage him ) . The puller hits him twice to begin the encounter , then hits time stop and hits him one more time . At this point the other four drakes should have 8 - 10 charges on Eregos . Now the puller activates Temporal Rift , and the other four hit him with a single shock lance ( which should hit for well over 100k due to their charges ) . After casting their lance , they return to rifting . At this point the puller has 10 charges ( from the other drakes ' lances ) , and casts shock lance himself , which also hits for over 100k , and gives the other four drakes 10 charges . The other four then hit him as the puller rifts . Repeat this pattern until 60 % . After the arcane phase , select a new drake to be the " puller " , and start over again . Eregos dies really fast on this strategy , which is the key , because you have no healing , and no tank to evade attacks . - edit - You have to time your time - stops correctly or Eregos will summon whelps that can overwhelm the party . Also , returning to him after Astral shift and timing a time - stop is important or this will ruin coordination and he will summon whelps . 4 Amber Drakes , 1 Emerald Drake . This strategy requires perfect group coordination to pull off . This strategy is almost identical to the 5 Amber Drake method . 3 of the Amber Drakes will activate Temporal Rift . After all 3 are up , the 4th Amber Drake designated as the ' tank ' will hit Ley - Guardian Eregos twice , then time - stop , then hit him again . He will then immediately Temporal Rift . The other 4 drakes , after gaining 8 - 10 charges , will attack the boss , making sure the tank ' s Temporal Rift is up . Immediately after the charges are blown , the tank attacks the boss again and the other 3 Amber Drakes activate Temporal Rift . The Amber Drakes should be using their Time - Stops to stop the boss ' s Whelp Summons and Enrage . During this time , the Emerald Drake will keep a 3 stack on the boss , a 25 % - damage debuff on the boss , and a heal on whoever needs it , mainly the tank . It is strongly recommended that the Emerald Drake prioritizes his own health before others as his death early in the encounter almost ensures a wipe . At 60 % , the boss will go immune and summon orbs . During this time , all the drakes need to fly away from the orbs . Also , any Amber Drake that used Time - Stop should blow their 5 charges on any whelps that have been summoned to kill them quickly before the boss re - enters the fight . By this time , if the whelps haven ' t died , the Emerald Drake is going to have to stop healing and start applying 3 stacks to the whelps as he will pull threat and not be able to heal or debuff the boss since both make the Emerald Drake lose its own health . During the 2nd cycle , the Amber Drake with the most health should be the new ' tank ' . The cycle repeats until the boss goes to 20 % , at which point he will phase out once again and everyone has to fly away from the orbs , killing any whelps they can . At the last 20 % , it is STRONGLY recommended that the Amber Drakes keep the boss in a constant Time - Stop as he is weak enough to die by the end of it . Note that diminishing returns apply so only so many can be applied , depending if you ' ve already Time - Stopped recently . Make sure coordination is strong and Time - Stops aren ' t used at the same time . This is a tough strategy but easier than the 5 Amber Drake strategy .