[Visual] Become almost totally invisible as demo Warlock

[Mantycore]

1) Do the Warlock's quest 5.2, obtain green fire
2) Use Aqua Jewel (you can have it from Sahn Tidehunter in the Vale of Eternal Blossoms)
3) Turn yourself into Metamorphosis

Then you seem almost totally invisible

[diabolikal]

except for the big red health bar over your head lol. neat trick though.

[Zethth]

This also work with astral moonkin form as druid