SM

Abbreviation

SM

(in order of common usage)

1. St. Martial, a city zone in City of Villains
2. Stone Melee, a Tanker/Brute power set
3. Stone Mastery, one of the Ancillary Power Pools
4. Soul Mastery, one of the Patron Power Pools
5. Shadow Maul, a power in the Dark Melee set