Max Companion fortification AA. Comparing to TBL, I could molo mobs with my pet and a cleric merc. Sometimes pet got behind in healing, and I would have to stun mob. 2 mercs, and my pet was pretty much golden. In TOV, even with 2 mercs, my pet doesn't last long in TOFS. It isn't uncommon to see pets upgraded after a new expansion, and it is apparently needed for this one as well.