Psoglav 2014

The psoglav makes three Bite attacks.

Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 18 (2d12 + 5) piercing damage.

The psoglav magically turns invisible until it attacks or uses Shadow-Stealing Ray, or until its concentration ends (as if concentrating on a spell). Any equipment the psoglav wears or carries is invisible with it.

The psoglav emits a beam from its single eye at one creature it can see within 60 feet of it. The target must make a DC 15 Constitution saving throw. On a failure, the target is pushed up to 20 feet away from the psoglav, and its shadow becomes a creature under the psoglav's control for 24 hours or until the shadow is reduced to 0 hp. On a success, the target is pushed up to 10 feet away from the psoglav and its shadow isn't stolen. Each controlled shadow uses the statistics of a shadow, except it can't create shadows from killing Humanoids. The psoglav can have no more than five shadows under its control at a time. The shadow becomes permanently under the psoglav's control if the shadow's original owner dies.

While in shadows, dim light, or darkness, the psoglav disappears into the darkness and reappears in an unoccupied space it can see within 60 feet.