Interesting bug when playing helms deep last month

Recorded a demo last month and noticed after one specific time the Supreme Glutton Tank spat me out, I and a few others had the red Uber like particle effect attached to our character, and somehow afterwards I was dealing over 5x dmg until I died.

Thought this was worth a thread, here's the link to the demo file if anyone was curious to see it.

https://www.dropbox.com/s/kqp9ys92aaypa4t/helmsdeep_damage-bug.dem?dl=0

Avenger nor Beserk were active here.