GAMEBREAKING Ingenious Leveling Play, 110-120 (Requires Mining) (Patreon)

 Patreon BobbyX kindly shared this ingenious leveling find:

Hey there, You may want to look at the Mobs in AQ. The Several mobs, The Obsidian Eradicator and Anubisath Sentinel All drop a Small obsidian chunk. You can mine thing. Apperently these give full exp as if they were a BFA mineral. At 116 with rested exp, Full BoA and the Draught of Ten Lands Buff on i am getting 5,600 exp for each one. It takes about 2 minutes to get 44800 exp. The only reason it may not be a good farm is because you would get locked out fast. But it is an easy 448,000 exp in 10 minutes. Would be great to let me know what you think. Thanks. 

I would add that this works very well with the portal to S'ilithus, you can run this to lockout and return to current content Kul'Tiras/Zandalar without significant downtime even without the use of a hearth or portal. 

Note that instance lock applies only to a specific server so if you are running alts on different servers lockout doesn't apply. This includes merged realms. 

EDIT: I've amended the title and upgraded the status of this exploit to "gamebreaking". The reason is that the mobs near the entrance re-spawn if you leave one alive and reset combat. Combat can be reset by leaving the instance. This means that instance lockout, the one problem with this play Bobby correctly identified, is no longer an issue. 

The four mobs around the first also re-spawn if one is left alive and combat dropped. Depending on your class mobility and loading speed it may be desirable to kill 3 of each pack and then leave the instance.

For hunters, this is a fantastic play as they can feign death/play dead and farm at super-speed to drop combat without having to leave the instance. 

(Btw Normally I wouldn't use block caps in the title, it is a bit tacky, but I thought it was important to emphasize this play has been upgraded).