THIS HAS ALREADY BEEN HOTFIXED AND IS NO LONGER WORKING!
Blizzard has implemented the new Midsummer Fire Festival with 2.4 (wiki link here) it starts on June 21st.
But for some strange reason (a bug), in Thousand Needles by the Great Lift if you go there, you get an awesome buff. This also happens in other parts of Thousand Needles (near the Tauren outpost there for horde).
As you approach the Great Lift you get a message. "Your bonfire is fully ablaze" or something like that then you get a 30% chance on hit or spell cast to inflict 10x your level in fire damage.
This is CRAZY for leveling a lowbie in Thousand Needles my Hunter who is 31 was leveling in 1k Needles and getting 310 extra damage....
Have fun until Blizz fixes it.
Heres the Wowhead link.... to the buff (read some comments of other people noticing this bug)
Here: Bonfire's Blessing
I'm not sure if you can bring a lower level, like 19 twink here, then que for wsg if the buff will last. If that happens this will be even more awesome. So far I can say it worked in Southern Barrens and 100k needles as I was just leveling there.
:This is my first find and I am excited to be able to contribute after all this time, trying to get off leecher status.