Bugbear Thug

Brute. A melee weapon deals one extra die of its damage when the bugbear hits with it (included in the attack).

Long reach. The reach of the bugbear's melee attacks is increased by 5ft.

Reckless. At the start of its turn, the bugbear can gain advantage on all melee weapon attack rolls it makes during that turn, but attack rolls against it have advantage until the start of its next turn.

Combat leap. If the bugbear moves more than 10 ft. on its turn, the bugbear can use its bonus action to leap over a Medium or smaller creature, provided there is an empty space for it to do so.  The bugbear must  a DC 15 Strength (Athletics) check landing on its feet in the target square on a success, or falling prone in the target square on a failure.  Success or fail, one it has used this feature, the bugbear cannot willingly move until the start of its next turn.

Multiattack. The bugbear makes two melee attacks.

Morningstar. Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 12 (2d8 + 3) piercing damage.

Javelin. Melee or Ranged Weapon Attack: +5 to hit, reach 10 ft. or range 30/120 ft., one target. Hit: 10 (2d6 + 3) piercing damage in melee or 3 (1d6 + 3) piercing damage at range.