Keen Senses. The Bog Rot Biter has advantage on Wisdom (Perception) checks that rely on sight, hearing, or smell. Magic Resistance. The Bog Rot Biter has advantage on saving throws against spells and other magical effects. Limited Telepathy. The Bog Rot Biter can magically communicate simple ideas, emotions, and images telepathically with any creature within 100 ft. of it that can understand a language. Investment of the Chain Master This creature's controller can use a bonus action to command it to attack. This creature's weapon attacks are considered magical for the purpose of overcoming immunity and resistance to nonmagical attacks. If this creature forces a creature to make a saving throw, it uses its controller's spell save DC. When this creature takes damage, its controller can use their reaction to grant it resistance against that damage.
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: (1d4 + 2) piercing damage. Sting. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: (1d4 + 2) piercing damage. The target must succeed on a DC 11 constitution saving throw or become poisoned for 1 hour If the saving throw fails by 5 or more, the target falls unconscious for the same duration, or until it takes damage or another creature uses an action to shake it awake.