False Appearance. While the Vine Chambler remains motionless, it is indistinguishable from a mound of vines unless a character suceeds on a DC 16 Perception Check.
Multiattack. The shambling mound makes two slam attacks or a vine grapple attack.
Slam. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 9 (1d8 + 4) bludgeoning damage.
Vine Grapple. Ranged Weapon Attack: +5 to hit, reach 30ft., one target. Hit: 6 (1d4 +4) bludgeoning damage and the target is grappled (escape DC 14) and prone as long as they are grappled. The target is wrapped in vines sprouting from underground and completely covering the target. The vines have 6 hp and can be killed to free the target from being grappled.