Striking Back (ID 11953)

If you don't see hostiles where the map/quest log say you should, go to Zidormi, just east of there (the little chat bubble on your map), and say that you want to see Silithus before the wound or whatever, and it'll change the zone, and you'll be able to find the mob you need.

Location of Ice Stone at 67, 21

New for 2021, you can do all six Striking Back quests per day for an additional +50 [item=23247]. I've come up with a route that is fairly efficient for Alliance characters.
Assuming you have the portal room in Boralus, and the [item=140192] unlocked (If you don't, you should). Start in Stormwind, with your heartstone set to Stormwind:

Spoiler

1. 
   
2. Take the portal from the harbor to Darnassus
3. 
   
4. Take a flightpath to Black Fathom Camp in Ashenvale (it may be faster to fly direct if you have Master Flying)
5. 
   
6. Complete Striking Back
7. 
   
8. Fly to Furien's Post in Desolace
9. 
   
10. Complete Striking Back
11. 
    
12. Hearth to Stormwind
13. 
    
14. Take the portal to Boralus
15. 
    
16. Choose your own Path!
17. 
    
    • 
      
    • If you have the Silithus portal unlocked use that.
      You'll need to talk to Zidormi to view past Silithus
    • 
      
    • Use the Caverns of Time portal, fly to Silithus
    • 
      
    
    
18. Complete Striking Back
19. 
    
20. Use your [item=140192]
    Take the portal from Dalaran to Stormwind
    Take the portal from Stormwind to Boralus
    Take the portal from Boralus to Ironforge
    Fly from Ironforge to Thorium Point in Searing Gorge
21. 
    
22. Complete Striking Back (nb: The summoning stone is inside the cave at Firewatch Ridge)
23. 
    
24. Return to Stormwind (Your regular hearthstone should be available again)
25. 
    
26. Fly to the Rebel Camp in Northern Stranglethorn
27. 
    
28. Complete Striking Back
29. 
    
30. Return to Stormwind
31. 
    
32. Talk to [npc=150122] right inside the door to the Mage's Tower, and get transported to The Dark Portal
33. 
    
34. Complete Striking Back
35. 
    
36. Use the portal at the top of The Dark Stairs to return to Stormwind one final time
37. 
    
38. Turn in quests!
39. 
    
40. Make it rain [item=23247]s!
41.