The Mobster ability set is limited edition Offensive, Defensive, and Movement Abilities earned through random drops in Akem's Gamble. It available between January 4th - January 24th 2012 and is found on Facebook.
As with other Ability Sets a player can earn more than one ability except for the reward Anselmi's Ruthlessness. These abilities cannot be given as Gifts.
Mythology and Etymology
See also: Akem's Gamble Events, Ability sets