hello, the skill of hunters-"master's call" unable to use in line of sight as normaly but when you try use it its make a CD for this skill and when you go with your pet out of line of sight its unable for use because the CD . WoWWiKi link-http://www.wowwiki.com/Master's_Call wowhead link-http://www.wowhead.com/spell=53271 wow insider link for more description for the skill but they doesnt say about the range -http://wow.joystiq.com/2008/08/29/skill-mastery-masters-call