Abduct. The bugbear needn't spend extra movement to move a creature it is grappling.
Multiattack. The bugbear makes two Javelin or Morningstar attacks.
Javelin. Melee or Ranged Attack Roll: +5, reach 10 ft. or range 30/120 ft. Hit: 13 (3d6 + 3) Piercing damage.
Morningstar. Melee Attack Roll: +5 (with Advantage if the target is Grappled by the bugbear), reach 10 ft. Hit: 12 (2d8 + 3) Piercing damage.
Quick Grapple. Dexterity Saving Throw: DC 13, one Medium or smaller creature the bugbear can see within 10 feet. Failure: The target has the Grappled condition (escape DC 13).