Bear of doom

Keen Smell. The bear has advantage on Wisdom (Perception) checks that rely on smell. 

Innate spellcasting. The bears innate spellcasting ability is Wisdom (save DC 12 +4 bonus to spell attacks). It can innately cast the following spells. 

3/day each: entangle, sleep, poison spray

1/day each: grasping vine, chromatic orb (acid only)

Multiattack. The bear makes two attacks: one with its bite and one with its claws.

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit:  11 (2d6 + 4) piercing damage.

Claws. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) slashing damage.

Sleep Breath (Recharge 6). The bear of doom exhales a 15-foot cone of poison gas. Each creature in that area must make a DC 13 Constitution  saving throw, or become poisoned for 1 hour. If the saving throw fails by 5 or more, the target falls unconscious for the same duration, or until it takes damage or another creature uses an action to shake it awake.