First you must complete these requirements;
- Need to have purchased Battle for Azeroth
- Have a level 110 already on that server
- Highmountain Tauren
Exalted with Highmountain Tribe and completion of Ain't No Mountain High Enough.
Nightborne
Exalted with the Nightfallen and completion of Insurrection.
Void Elf
Exalted with Argussian Reach and completion of You Are Now Prepared!
Lightforged Draenei
Exalted with Army of the Light and completion of You Are Now Prepared!
After that
- Head to embassy in Orgrimmar or Stormwind
- Talk to ambassadors for traist and requirements
- Talk to Anduin (alliance) or Sylvannas (horde) to start the scenario
Other posts
- Complete Guide to Unlocking the Coldflame Tempest Mount in WoW Patch 11.0.5
- Ultimate Class Guide to WoW 11.0.5 Patch: Winners and Loosers
- M+ Overview Before Patch 11.0.5 - notable shifts and trends
- The Real Prep for the 20th Anniversary: A Guide to Earning Bronze Celebration Tokens
- New Cosmetic Items Available at the Undercoin Vendor for Patch 11.0.5
- Overview Before Patch 11.0.5 - DPS Specs Performance & Popularity
- Blizzard Clarifies Functionality of Severed Strands Raid Buff
- Comprehensive Guide to WoW's 20th Anniversary Celebration (Patch 11.0.5)
- Exciting New 12-Month Subscription Package from Blizzard
- The War Within Weekly Dungeon Event: Complete 4 Dungeons for a Heroic Nerub-ar Palace Loot Cache!