Cubik ain't invincible, just has a habit of resurrecting within seconds. Best to kill him while he isn't expecting it - the ol' hex works just fine.
Yep, cubik. It works.
Cubik got his revenge on me the next morning by hosting the 6-Cell Games. I have a question... WERE YOU NOT ENTERTAINED?!?
Khans - The only faction that kills developers.
How did you kill cubik??
White Power
and old khan tricks