Sigma

A human, typically a male, that is so powerful, popular and intelligent. That is always multiple steps in front of Alpha's and Beta's.
You can tell apart a sigma because they will have flock of women chasing the sigma.

Person A: Hey. Did you hear what happened to Kyle?
Person B: No, What happened.
Person A: He challenged a Sigma to a duel.
Person B: Where is he now?
Person A: Dead.