Hm?
Why do I equip my pet?
Well, there’s this hunter attribute that gives 30% from pet damage to skill damage, so if you were to reach 3334 then you’d be getting 1K extra skill damage from your pet.
And… if you meant what I’ve got on my pet, well:
Light gorithos +6 enhanced by a lv 15 squire, attack given to the pet: 605
Light gorithos +1 enhanced by a lv 15 squire, attack given to the pet: 551
Didel tower shield +1 with a red gem lv 7, attack given to the pet 185
Alemeth tower shield, doesn’t grant anything other than defense, missing gems.
Both shield are supposed to have 2 red gems lv 7 each, I’ve not gotten those gems yet. They would give 740 attack to the pet.
My current pet ATK is 1959, if I had all the gems for my shields the attack would be 2514.
The best possible item to equip a companion with? Emengard Cannon with 2 lv 7 red gems, two of those.
Weapons red gem do nothing for the pet, sub weapon red gems do add attack to the pet.