"Troll's charge range is 17 squares not 9 unless it starts prone btw since charge is a standard"<br/>Yup that's right :) hence its important to burn through the 15 HP which knocks it prone as it KOs.<br/><br/>The only one who can reliably bring it down with one action is Zynna. That frees at least one other person to go for the torch and brand with all her available actions, and another to make sure he doesn't take Zynna out with either his melee attacks or his psychic ranged attack. Just FYI, he can make two of those Psychic Whispers, the main benefit is that it doesn't benefit from his rage in terms of accuracy and damage bonus from being bloodied.<br/><br/>It is a working strategy, not super thorough but sufficient.<br/><br/>Good luck!