Bugbear Huntmaster

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

Innate Spellcasting. The bugbear's innate spellcasting ability is Wisdom. The bugbear can innately cast the following spells, without providing material components:

1/day each: beast bond, beast sense, hunter's mark

Slay Foe (1/Turn). The bugbear deals an extra 9 (2d8) damage with its weapon attack if it hits a creature that doesn't have all its hit points.

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 or two ranged attacks.

Greatsword. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 17 (4d6 + 3) slashing damage.

Hunting Bolas. Ranged Weapon Attack: +6 to hit, range 20/60 ft., one creature. Hit: 5 (1d3 + 3) bludgeoning damage and the target must succeed on a DC 14 Strength saving throw or be restrained and knocked prone. As an action, the restrained creature can make a DC 14 Strength check, escaping on a success. The effect ends if the hunting bolas is destroyed. The hunting bolas has AC 10, 5 hit points, resistance to bludgeoning damage, and immunity to poison and psychic damage.

Longbow. Ranged Weapon Attack: +6 to hit, range 150/600 ft., one creature. Hit: 7 (1d8 + 3) piercing damage.

Summon Beasts (Recharges after a Short or Long Rest). The bugbear summons 2d6 giant rats, 1d4 wolves, or 1d2 worgs. The beasts appear in unoccupied spaces within 30 feet of the bugbear and acts as its allies. The beasts act right after the bugbear on the same initiative count and fight until they're destroyed. They disappear when the bugbear dies.

Go for the Throat. As a bonus action, the bugbear targets one beast within 30 feet that can see and hear the bugbear. The beast can use its reaction to move up to half its speed and make one melee attack against a pronecreature. If the beast hits, the hit is automatically a critical hit.