Typically with pet you take Brute Force, Speed Training (50% speed increase for pet - needed so it can actually hit running people), Pack Synergy (50% crit bonus - doe'snt make up for the lost dmg from Loner at all), and then you take Tearing Blades (DoT for sundering chop) or blindsided! (+1s Buildtime) or Pack Hunting (but this requires you to be in Trained to Hunt which is the worst line for pet abilities - no snare/armor debuff/worst dmg) Without pet I can take Loner (25% more dmg without pet!!), Pack Hunting (50% auto-attack speed increase when in Trained to Hunt - without pet it's a good thing to take - ~30% more dmg), Brute Force (160 str) and Blindsided! The dmg difference between those builds feels HUGE. I can hardly kill good healers with pet whereas I destroy healers with the loner build.