Automatically brings up DBM range check when entering Onyxia's Lair to check for players with a lower GUID than you. Any players that show in the radar have a lower GUID than you and will prevent you from losing aggro if both of you are hit by fireball in Onyxia phase 2. Radar range is the size of fireball radius. Credits to Fight Club discord for finding the macro used in this weakaura
