These eight booster packs each add new Monsters to the Overlords game, including Triple Letter Monsters and Monsters with powers of healing and berserking. The boosters are as follows: AAA, BBB, CCC, DDD, Healers and Berserkers AA, Healers and Berserkers BB, Healers and Berserkers CC, and Healers and Berserkers DD. Each booster comes with 5 Overlord cards and 21 plastic token units.