What do I need to do to make the following below have Area Of Effect (personal Surface — Damage Shield)?

High Temperature Body: Killing Attack - Ranged 1d6, Area Of Effect (1m Radius; +1/4), Persistent (+1/4), Constant (+1/2), Reduced Endurance (0 END; +1/2) (37 Active Points); No Range (-1/2), Always On (-1/2)