Bugbear Bulwark

Brute. A melee weapon deals one extra die of its damage when the bugbear hits with it (included in the attack).
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.
Experienced charger. When the bugbear takes the Dash action, it may make a single melee attack shield bash as part of the action, but performing either act ends the movement from that Dash.
Prolific Poisoner. Whenever the bugbear inflicts damage on a creature with its morningstar or shield, that creature must make a DC 13 Constitution save. On a failed save, the creature takes 7 (2d6) poison damage.

Morningstar. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 14 (2d8 + 4) piercing damage.

Spiked Shield Charge. The bulwark uses its action after moving at least 10 feet towards its intended target to charge at the chosen creature, shield first. 
Melee Weapon Attack: +12 to hit, reach 5 ft. one target. Hit: 19 (3d6+9) piercing damage.

Spike Shield Bash, Bonus Action. The bulwark attempts to bash a target within 5 feet of itself with its spiked shield. The target must make a DC 15 Strength saving throw. On a failed save, the target is pushed back 5 feet (not prone) and takes 11 (2d6+4) piercing damage.