Let's take a look at "On A Short Leash", an achievement one can get in Veteran Moon Hunter Keep on the last boss.

Once you understand when the wolves Ary and Zel come back into the fight and keep a comfortable pace with the werewolf add spawns, the achievement gets much easier.

Potentially you may need your tank to run 3x Swift jewelry, otherwise try just Charging Maneuvers first with any class or non-class ability that grants additional movement speed. If a single person gets even tapped by either Ary or Zel, you must reset the fight.