In the absence of Deathstalker Rexxar, I think Zul'jin is very important for Hunter’s potential longevity and it’s likely that we will see hybrid builds such as this one come to the forefront. Hunter’s early game is noticeably weaker though a few serviceable early game beasts are now available in Shimmerfly, EVIL Cable Rat and Hench-Clan Hogsteed. With Unleash the Beast, Marked Shot, Baited Arrow, Dire Frenzy and Master's Call, Zul'jin should provide Hunter with a lot of gas to potentially swing the game around.