Here are all the pack buffs you get with the new instinct types. Having more than one of the same pack type adds to your animal pack buff.
|Arachnid||Frost Spider, Giant Spider, Scorpion, Wolf Spider|
|Bear||Black Bear, Brown Bear, Grizzly Bear, Polar Bear|
|Canine||Dire Wolf, Dog, Grey Wolf, Hell Hound, Timber Wolf, White Wolf|
|Daemon||Fire Steed, Imp|
|Feline||Cat, Cougar, Hellcat, Leader Hellcat, Panther, Predator Hellcat, Snow Leopard|
|Ostard||Desert Ostard, Forest Ostard, Frenzied Ostard|
As suggested above, a Frost Spider and a Giant Spider both belong to the Arachnid group and can be used together to receive the pack instinct damage bonus. However, while a Frost Spider and Black Bear both can use pack instinct, they do not receive the damage bonus when used together since one is of the Arachnid group and the other is of the Bear group.
|Pets in Pack||Damage Bonus|