My Mercs' slottings on my lvl 50 Merc/Poison:
Soldiers: AHeel DefDbf, Edict of the MM Defense Aura, 4 Superior M of Supr (including the Resist and Regen Aura one)
Spec OPS: 1 50 Acc IO, Call to Arms Def Aura, Cloud Senses NE Damage, 3 Sup Comm of MM (including AOE Defense Aura)
Commando: 50 Acc IO, Expedient Reinforcement Resist Aura, 4 Soulbound Alleg (including Chance for BU)
I do have some damage procs in my poison attacks, however. Weaken and Neurotoxic Breath both have them.
Am I doing it wrong?