DaShiv is right. I haven’t played one hour of GD since 1.0.0.6. when I said that lifting requirements from ABB will result in perma-freeze spellbreakers and nobody listened. He is right…Primal Instinct was nerfed hard somewhere in that period along with some other items that supported lightning. In 1.0.0.5, however, lightning pets could annihilate Mogdrogen. Sure, a strong part of the equation was his poor A.I., but they could…
Even now, however, after the 1.0.3.0 nerfs to the Malmouth tome, lightning pets are a safe bet. Aether / Lightning hybrid is where is at actually, though I let some more passionate player discover it and post it here.