1- The item that starts this questline drops from
reputation zone monsters : (Ner'Zhul's Mark)

3% chances per mob to loot it
Meet Ner'Zhul Spirit in the Mall :

2- You must kill the Echo of Kil'Jaeden in the burning steps

3- Kill the echo of Archimonde in Crystalsong Forest :

4- Find Velen's Image in The Warp Piston :
Ner'Zhul Spirit offer a direct TP!
5- Velen will charge you to recover Death Knights Plans
they drop on Scourge Knights in reputation zone (~3%)

6- Kill 200 Initiate Knights in Eastern Plaguelands :

7- Kill 200 Adherent Knights in Winterspring

8- Kill 200 Champion Knights in Icecrown :

9- and finally Kill Mannaroth Image :

10 - Velen will ask you to return to Ner'Zhul Spirit
and to bring him 8 Honor and Arena Tokens
To recieve the trinket of your choice :
