The script itself revolves around only Matron being able to be damaged, as both Lesche and Gurze both have immunity buff. Upon pulling and reducing Matron's health to 80%, she will immediately gain the immunity buff, in which Lesche now loses immunity and can be attacked. Lesche contains a special ability that charges, stuns, and does around 1000 damage to non tank players.
At this point, regardless of class, all members should stand within 3m of Lesche as it is tanked to remove this factor from the encounter. Once Lesche reaches 50% health, it will immediately obtain the immunity buff, and Gurze attacks the group. At this part of the Script, both Matron and Lesche are immune, with only Gurze able to be damaged. Gurze special ability is to enrage, growing in size, and doing massive frontal cone damage of up to 950 depending on armor. Gurze must, at all times, be facing away from the group, who should remain together behind Gurze.
Once Gurze is damaged to 50%, Lesche activated and both Lesche and Gurze fight the group until both are dead. The group should choose which to burn down, and immediately focus fire until that minion is dead. When both minions are dead, Matron finally loses her immunity buff for the remainder of the encounter. She obtains a new ability at this final part of the script, being a death based area of effect that hits everyone for up to 800 death based damage.