So I've been picking up on the rumor that one of two settings to be coming up from Wizards may be Dark Sun. I have some ideas for a story line. If the setting does not appear soon though, what suggestions might anyone have for a mechanic to use Arcane Defiling in 5e, or is there one out there? The 4E way was not terribly elegant but I don't want to bias anyone. What are your ideas?