Dracloak

Supplementing its diet of heat and light with fresh blood drawn through its probing tentacles, the Dracloak manipulates surrounding light to create areas of pitch darkness, blindingly psychedelic flashes or even life-like holograms as it stalks its prey. Even where optical illusions fail, the monster generates no heat of its own, lacks any odor and can hold itself absolutely still to the microscopic level, rendering it virtually undetectable to other common sensory systems. A soft, malleable and stretchy body further enhances the Dracloak's ability to hide virtually anywhere and disguise its true form.