Chai Golem (rot hare)

Immutable Form. The golem is immune to spells or effects that would alter its form.

Magic Resistance. the golem has advantage on saving throws against magic and magical effects.

Magic Weapons. the golem's attacks are magical.

Organic Magic Immunity. the golem is immune to the effects and damage normally imposed by plant based spells such as entanglement, grasping vines, or hail of thorns.

Pack Tactics. The creature has advantage on attack rolls against another creature if at least one of the attacking creature's allies is within 5 feet of the target creature and the ally isn't incapacitated.

Plant Growth. plants grow from the golems body. 

Multiattack. the golem makes two attacks

Plant Attack. the golem can use the plant that grows from it to attack.

Slam. Melee Weapon Attack: +2 to hit, reach 5ft., one creature. hit: 6 (2d4 +2) Bludgeoning damage.

Rot Fungus. Melee Weapon Attack: +1 to hit, reach 5ft., one Creature. hit 8 (3d4 +2) Necrotic Damage.

Grasping vine. a vine sprouts from the golem's body alowing it to graple a single target within 15 ft that the golem can see. the target must succeed on a DC 12 dexterity saving throw or be grappled. if the target is larger then the golem is pulled towards the target.