Bugbear Reaper

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

Cunning Action. The bugbear can use a bonus action to take the Dash, Hide, or Disengage action.

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 weapon attacks with its scythe or javelin.

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

Blinding Sweep (Recharge 6). The bugbear spins with its scythe, hitting all creatures in a 10-foot radius. Each creature must make a DC 13 Dexterity saving throw. On a failed save, the creature takes 7 (1d8 + 3) slashing damage and is blinded until the end of its next turn. On a success, the creature takes half damage.

Steathly Positioning. When the bugbear is reduced to below its maximum half hit points, it can use its reaction to move up to its speed. If it has cover at the end of the movement, it can make a Stealth check to become hidden.