system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] What Lantern Corps would the The Joker be in?

If he had a lantern ring?
gpt
The only Corps that would knowingly accept a psycho like Joker are the Indigos, for compassion. 

"But Joker has no compassion," you might say. That's the neat part: they take psychos like Joker and *force* them to feel empathy whether they like it or not.