Ohhhh, looks like something my Jungle-Xin Zhao would like. =D Been on a bit of a roll with him lately.
The feral flare jungle item on PBE is pretty much madreds bloodrazer. Going to be a huge buff to late game jungle Warwick assuming the item doesn't get nerfed before it goes live.
Item will be really good on more auto attack reliant junglers like Nocturne, Jax, Yi, Trynd, or Kayle, and Shaco even.