Pack tactics. The Chryssalid has advantage on an attack roll against a creature if at least one of the chryssalid's allies is within 5 feet of the creature and the ally isn't incapacitated.   Resilient Hide. Any critical hit against the chryssalid becomes a normal hit.   Chryssalid Injection. Creatures poisoned by the chryssalid have an Embryo injected into them. If the creature dies whilst poisoned in this way, it will mature, causing the body to bloat and reanimate, becoming a Zombie for 1 hour. The zombie acts in the defense of its parent chryssalid, following them. At the end of the hour the body bursts as a child chryssalid is born from it's remains.