I think he's talking about the DoT that is applied to the tank durning this phase. If not im not sure, but what the Dot does is make it so the tanks have to swap because if the tank with the dot is healed during the 20 second dot it in turn heals kel'sara. the adds need to be burned down as well as a tank i think i did it in 3-4gcd by myself. Lastly she puts a beam of light on a player and starts moving towards them. Kite her away and it does nothing(if shes catches the player however it is 1 shot)
None of this is what we are talking about.