Firebrand Scrapper Scourge Scourge Tempest. Firebrand Scrapper Scourge Revenant Weaver. Firebrand Scrapper Scourge Revenant Weaver. Basically, one Firebrand per subgroup, one Revenant per subgroup, no more than one Scrapper or Tempest per subgroup, distribute Scourges evenly across subgroups as best you can for more even barrier application. Try and make sure Weavers are in a subgroup with a Revenant to give them permanent Fury, and if you have Spellbreakers fit them in where you can. Obviously this all assumes you have enough of each class. If there aren't enough Firebrands, Weavers and backline Revenants are more able to cope without party support than other classes.