>>5246135Think, anon, think! A parasitic organism that can regulate the host's fear, pain, and bodily functions! That can make the host endure long past the point where their body should have failed, and give them practically supernatural physical abilities! A nigh-telepathic connection to other parasite hosts! The ability to shut down unshielded machinery, possibly able to be suppressed or intentionally triggered with conscious thought if worked on down the line. And, most importantly...occupying the host, rendering them incapable of possession from natural-born wraiths.