Carnivorous Mushroom

False Appearance. While the carnivorous mushroom remains motionless, it is indistinguishable from an ordinary giant mushroom.

Hypnotic Cap. The carnivorous mushroom's fruiting body sheds bright light in a 10-foot emanation and dim light for an additional 20 feet, and has the following effect. Wisdom Saving Throw: DC 13, each creature who sees the fruiting body for the first time. Failure: The target is Charmed for one minute, and cannot use its action except to use the Dash action to move toward the mushroom, as long as this movement would not harm the creature. The Charmed creature can repeat this saving throw at the end of each of its turns, ending this effect on a success. Success: The target is immune to all carnivorous mushrooms' Hypnotic Caps for 24 hours.

Toxic Spores. Constitution Saving Throw: DC 13, each creature in a 15-ft. Emanation. Failure: 9 (2d8) Poison damage, and the target is Poisoned until the start of the mushroom's next turn.

Spawn Sprouts (2/Day). The mushroom buds off a mycelial swarm into a space within 15 feet. The swarm acts on the mushroom's turn.

Engulf. Strength Saving Throw: DC 13, one creature Grappled by the mushroom. Failure: The target is engulfed, and is Blinded, Restrained, and cannot breathe. The creature has total cover from all attacks and effects originating outside of the carnivorous mushroom. Until the grapple ends, the target takes 18 (4d8) Acid damage at the start of each of its turns. 

Ensnare. Trigger: A Medium or smaller creature moves within 5 feet of the carnivorous mushroom. Response: Strength Saving Throw: DC 15. Failure: The target is Grappled (escape DC 15). If the creature is affected by the mushroom's Hypnotic Cap ability, it has disadvantage on this saving throw. A carnivorous mushroom can grapple one creature at a time. When it has a creature Grappled, the carnivorous mushroom has a +5 bonus to its AC against attacks originating outside of its cap.