I always thought Cordy's glowy healing power thing was kind of odd. It just suddenly appeared conveniently and then wasn't really mentioned again to my memory.
S
Skytteflickan88
I assume it was something Skip but in so she could use once, to get closer to Connor. Remeber, anything Cordelia did after getting her demon powers is suspiscious, considering wehave no idea what kind of stuff he actually did to her body and mind.
crazysoulless
I always cringe in S3 when she becomes part-demon cuz there was nothing demonic about it. She didn't get bloodlust. She didn't look any different. All that happened was she no longer felt pain and could float during visions, and glowed when scared.