With new Thunder Coil armor mod there are melee oriented builds for titans and hunters. However, due to bungie's oversight, there's none for warlock. Hunter actually works even w\o mod, but titan definetly getting full benefit from it. Somehow, when proc-ing Knockout on titan you are getting that juicy 50% bonus damage from mod, even if you have no melee energy. Exactly the same with Combination Blow on hunter. And yet on warlock it only works with full melee energy even when warlord sigil is proc-ed. If damage buffs counts toward proc-ing that Thunder coil bonus, then why on earth it doesn't count for warlocks as well? Because it's the exotic buff and not the ability? Then why Liars handshake and synthoceps stacks multiplicatively? I undersrand the difference between how the game treats hunters and titans vs warlocks in this case, but I feel that it is unfair and can be looked into.