Mukkral Blackvein

How to unlock this npc:

1. 
   
2. You buy [item=162530] from [npc=135447] (The Honorbound emissary)
   /way Zuldazar:Zandalar 58.06 62.66 The Honorbound Ransa Greyfeather
   /way Dazar'Alor:Zuldazar 50.08 99.66 Ransa Greyfeather
   
3. 
   
4. It unlocks follower mission [mission=1880] ([item=161121])
   After 3-6 hours you can take a quest Mission Report: The Wolf's Den.
   If you had full bags, check your post for the item
5. 
   
6. Following quest The Wolf's Den is to go and build outpost.
   Outpost is located in Tiragarde Sound (North at 62.23 13.42)
   /way Tiragarde Sound 62.23 13.42 Wolf's Den
   This steps unlocks windrider in Tiragarde Sound <= map
   
7. 
   
8. Now you have to wait for the next Rare follower mission [mission=1957] to pop up
   After 3-6 hours you get [item=163507] Mission Report: Wolves For The Den quest.
   
9. 
   
10. Following quest Wolves for the Den is upgrade outpost quest for this outpost
    For upgrade buffs check more detailed post here
11. 
    

Video of outpost + upgrade: https://www.youtube.com/watch?v=xLVS0tvZUDg

Item

Quest

Upgrade Quest

Zone

Location

Cost

Video

[item=162530]

The Wolf's Den

Wolves for the Den

Tiragarde Sound

North at 62.23 13.42

250

https://youtu.be/xLVS0tvZUDg

[item=162536]

Swiftwind Post

Wicker Magic

Drustvar

South-east at 66.15 59.52

250

https://youtu.be/YPutY8djtuM

[item=162531]

Stonefist Watch

Spare Parts

Tiragarde Sound

West at 53.18 62.96

300

https://youtu.be/smjTP0-fCm8

[item=162535]

Mudfisher Cove

The Wicker Totem

Drustvar

North-east at 61.89 16.36

300

https://youtu.be/CAvXe0YPEdo

[item=162532]

Windfall Cavern

Stormsong Valley

North at 60.33 25.72

200

https://youtu.be/4F-V-bjBpvs

[item=162533]

Hillcrest Pasture

Stormsong Valley

South at 52.74 80.18

200

https://youtu.be/hjWPOjn1Dig

[item=162534]

Stonetusk Watch

Nettin' Ettin

Stormsong Valley

South-west at 39.38 68.50

300

https://youtu.be/XTIP1fHrfOY

Also this can be a little bit different on live, because blizzard keep changing how this system works.
Check more detailed post here: Ready for War#comments:id=2576578

He used to be a Garrison Follower from the Frostwall Inn.

[follower=230.2 domain=www]