Brute. A melee weapon deals one extra die of its damage when the bugbear hits with it (included in the attack).
Heart of Hruggek. The bugbear has advantage on saving throws against being charmed, frightened, paralyzed, poisoned, stunned, or put to sleep.
Surprise Attack. If the bugbear surprises a creature and hits it with an attack during the first round of combat, the target takes an extra 7 (2d6) damage from the attack.
Multiattack. The bugbear makes two melee attacks.
Morningstar. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) piercing damage.
Javelin. Melee or Ranged Weapon Attack: +5 to hit, reach 5 ft. or range 30/120 ft., one target. Hit: 10 (2d6 +3) piercing damage in melee or 6 (1d6 + 3) piercing damage at range.