8 cards where the full Oracle text includes “pack tactics —”

Battle Cry Goblin (Adventures in the Forgotten Realms #132)
Gnoll Hunter (Adventures in the Forgotten Realms #185)
Hobgoblin Captain (Adventures in the Forgotten Realms #148)
Intrepid Outlander (Adventures in the Forgotten Realms #191)
Minion of the Mighty (Adventures in the Forgotten Realms #156)
Targ Nar, Demon-Fang Gnoll (Adventures in the Forgotten Realms #234)
Tiger-Tribe Hunter (Adventures in the Forgotten Realms #163)
Werewolf Pack Leader (Adventures in the Forgotten Realms #211)

This search is finished. Now the real work can begin.