The tower
Yesterday's patch should have fixed this - it no longer damages people under 25% health, and it no longer refreshes the damage tick when zoning or rezzing.
Paragon Wiki: http://www.paragonwiki.com
City Info Terminal: http://cit.cohtitan.com
Mids Hero Designer: http://www.cohplanner.com
I don't know if this has been mentioned yet but I haven't seen anything and am sure it's a bug. The Tower from when you have your fortune read gives plus damage and also damages you.
Well in a PvP when you die and re spawn you have just a tick of health. well with the tower buff on you without a green or a heal you die instantly after re spawning at the hospital.
Surely this can't be working as intended.