Final Sting mechanic

[Ehayte]

So basically kite it screaming "OH GOD OH GOD OH GOD OH GOD", gotcha!

Know if the attack is time based or hp based?

Haha - that's funny.

It is indeed stunnable as others have said - and I do not think you can avoid it by running away - I tried it once when we lost both DPS to doom on the first boss, had one bee left about to final sting me, and I ran straight to the other side of the room. It popped off and blasted me for 2200, finishing me off.

The definitive mechanic is: kill them fast.