This item is just more of the same which we have right now but with higher numbers on it. There is nothing gamechanging on it. The Hydra proc sounds cool, but even if the hydras damage scales with weapon damage its nothing game breaking or changing. If its flat damage like hellfire - Garbage!
Let's say if the rare ones drop in about the same damage ranges and one had 70+ Crit Dmg on it same amount of int and socket. This "Legendary" would again be considered garbage!
If there are still random properties on it, and socket could also roll as life after kill or thorns, it would make it even worse...
If this kind of stuff is your Loot 2.0, then be prepared to start working on Loot 3.0 in a matter of weeks after the Expansions Release.