Fogbound Presence. The area within a 120-foot radius of the Driftgloom Coyote is heavily obscured by thick, unnatural fog. Any creature other than the Driftgloom Coyote that starts its turn in the fog must succeed on a DC 15 Wisdom saving throw or become lost in the fog. A creature lost in the fog uses its movement to move in a random direction and can only move at half speed.

Keen Hearing and Smell. The coyote has advantage on Wisdom (Perception) checks that rely on hearing or smell.

Pack Tactics. The coyote has advantage on an attack roll against a creature if at least one of the wolf's allies is within 5 feet of the creature and the ally isn't incapacitated.

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) piercing damage. If the target is a creature, it must succeed on a DC 13 Strength saving throw or be knocked prone.

Devouring Fog. The coyote targets a creature lost in its fog. That creature must succeed a DC 18 Wisdom saving throw or be banished. This effect works like the banishment, sending the target to a demiplane resembling a giant foggy forest. 

Howl (Recharge 5–6). The coyote lets out a bone-chilling howl, summoning an even denser layer of fog and striking fear into the hearts of its enemies. Each creature within 60 feet of the coyote that can hear the howl must succeed on a DC 15 Wisdom saving throw or become frightened for 1 minute. A frightened target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Fog Meld. While in fog, the Driftgloom Coyote can use its bonus action to become invisible. The invisibility lasts until the coyote attacks, is hit by an attack, or until it chooses to end it (no action required).