The WretchedSmall monstrosity
Wretched Pack Tactics. The Wretched has advantage on an attack roll against a creature if at least one of the Wretched’s allies is within 1 meter of the creature and the ally isn’t incapacitated. The Wretched otherwise has disadvantage on attack rolls.
Bite. Melee Weapon Attack: +3 to hit, reach 1 m. Hit: 6 (1d10 + 1) piercing damage, and the Wretched attaches to the target. While attached, the Wretched can’t attack, and at the start of each of the Wretched’s turns, the target takes 6 (1d10 + 1) necrotic damage.
The attached Wretched moves with the target whenever the target moves, requiring none of the Wretched’s movement. The Wretched can detach itself by spending 1 meter of its movement on its turn. A creature, including the target, can use an action to detach a Wretched.
No concoctions, maneuvers, or spells
All monsters in this system should have maneuvers or spells. You should add some maneuvers or spells to this monster. If you do so, please make a suggestion on github so I can finish adding maneuvers and spells to all monsters via https://github.com/mlenser/kryx-rpg-issues/issues/9