Vine Golem

Immutable Form. The vine golem is immune to any spell or effect that would alter its form.

Magic Resistance. The vine golem has advantage on saving throws against spells and other magical effects.

Plant Camouflage. The vine golem has advantage on Dexterity (Stealth) checks it makes in any terrain that contains ample obscuring plant life.

Multiattack.The vine golem makes two thorned vine attacks.

Thorned Vine. Melee Weapon Attack: +8 to hit, reach 15 ft., 1 target. Hit: 8 (1d8 + 5) piercing damage, and the target must succeed on a DC 14 Strength saving throw or be pulled up to 10 feet toward the vine golem. 

Thorned Embrace. Melee Weapon Attack: +8 to hit, reach 5 ft., 1 medium or smaller target. Hit: 13 (2d8 + 5) piercing damage, and the target is grappled (escape DC 13). Until the grapple ends, the target is restrained, and the vine golem can't embrace another target.