Dark Chevaliers

Chevaliers are the second highest level of chiropterans in terms of
strength and ability. They are created when a human drinks the blood of
a queen. A powerful bond exists between each chevalier and the Queen
that sired them, compelling the chevaliers to serve and protect her at
all costs.

Chevaliers have even greater speed, strength and endurance than
regular chiropterans. Though they retain the appearance in body form
and age that they had when they were transformed, chevaliers have vast
shape-shifting abilities. They can transform into unique forms
resembling regular chiropterans, either entirely or limited to specific
body parts, and can transform into the humans they have fed upon. They
heal instantly from almost any non-lethal wound, though severe wounds
will temporarily cause an increase in their need for blood. As with
regular chiropterans, chevaliers can be killed with the blood of the
opposite queen; however, the crystallization takes longer and it is
possible to prevent death by removing the crystallizing body parts. A
chevalier can also be killed by beheading or burning their whole body.