So the Unhallowed Essence set has been given a few buffs coming up in the 2.6.1 Patch. But I think they (Blizzard) they need to take it a step further. What they did was simply buff damage numbers. In addition to that, I think what they should do is move around some mechanics as well, and add a couple new ones. I believe these changes will bring some variety to UE Multishot, and allow for more builds, and not to have the set just be using Fire/Arsenal. Here's my idea:
Change the Skill/Runes:
Cost: 25 Hatred
Fire a massive volley of arrows dealing 360% weapon damage to all enemies in the area as well as launch 3 rockets that each deal 300% weapon damage.
Fire at Will
Enemies hit with Multishot have a chance to be electricuted, and spread damage up to 3 nearby enemies for 200% weapon damage as Lightning.
Multishot's damage turns into Lightning.
Enemies hit are Chilled, slowed by 80%, and have an 8% increased chance to be critically hit for 3 seconds.
Multishot's damage turns into Cold.
Knockback the first 4 enemies hit and stun them for 1 second.
Increase the damage of Multishot to 500% weapon damage.
Each time you fire, Multishot now launches 5 rockets at nearby enemies that each deal 250% weapon damage as fire.
Multishot's damage turns into Fire.
Increase damage of rockets by 100%
In addition, your rockets now seek out elite enemies within 60 yards.
Each successive critical hit you deal has it's damage increased by 25%.
Band of Hollow Whispers (This one's a stretch I think, but I wanted to give CoE a contender and make a useless ring decent)
Increase the damage bonus of Vengeance to 200%.
Lemme know what you kids think!