Activated if a spell is sling in the room. Numeric Arg : percent chance this trigger will be activated. Argument : not used. Used with return 0 will cause the spell not to be sling. Variables: %actor% - the slinger of the spell. %spell% - the number of the spell. %spellname% - the name of the spell. %vict% - the target (mob/player) of the spell, if any. %obj% - the target (object) of the spell, if any. %self% - the room. Example: TSTAT 57