The stalker makes two attacks: one with its Bite and one with its Claw.

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 1d10 + 3 piercing damage. If the target is a creature two size categories smaller than the stalker or smaller, the target is grappled (escape DC 14). While grappled in this way the target is restrained and takes 1d6 acid damage at the start of the stalker’s turns. The stalker can have only one creature grappled in this way at a time.

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 2d6 + 3 slashing damage. On a hit the target must succeed on a DC 14 Strength saving throw or be knocked prone and pulled up to 10 feet closer to the stalker as writhing tendrils seize it.

Recharge 5-6. The stalker exhales a thick cloud of bioluminescent spores in a 20-foot cone. Each creature in that area must succeed on a DC 14 Constitution saving throw or be poisoned and blinded until the end of its next turn. A creature that succeeds is not poisoned but is still partially obscured (attack rolls against it have disadvantage) until the end of its next turn. The area covered by the cloud becomes lightly obscured for 1 minute and is difficult terrain for plant and animal creatures that try to move through it.

The stalker slams roots and vines into the ground to animate nearby undergrowth in a 15-foot radius centered on a point it can see within 60 feet. Creatures of the stalker’s choice in the area must succeed on a DC 14 Strength saving throw or be restrained by vines for up to 1 minute. A restrained creature can use an action to make a Strength check against the saving throw DC, freeing itself on a success. The vines remain animated for up to 1 minute, providing half cover to the stalker if it stays within the area. Once used, this trait cannot be used again until the stalker finishes a short or long rest.

When a creature the stalker can see within 10 feet misses it with a melee attack, the stalker may make one Claw attack against that creature as an immediate counter.