Unique items in need of saving

We all know that most unique items are not competitive compared to runewords. Which occasionally leads people to suggest nerfs to Spirit or Enigma (hands off!)
Let's look at it the other way around, how would we change uniques to make them playable?

Let me start with a

Crossbow and a bow (honestly almost all missile uniques are terrible, these two are just examples)

Ichorsting

Increase the poison dmg 6x, to 180 over 3 seconds. will at least compete with a few emeralds at lvl 18. with the piercing attack, attack speed and dex bonus will be a playable niche option

Blood Raven's Charge

Just forget the stats, they are all terrible. Roll these stats instead:

+2-4 zon skills
+3

Exploding Arrow
+200-250% ED
+4 attack rating per clvl
20% ias
5% chance to cast lvl 6

Lower Resist on hit

will it be better than Infinity, Faith or Phoenix on zon or rogue? no. will it be a playable option? yes!