An easy way to turn those 3 similar exotic armor pieces into viable choices is : · 20% grenade/class ability/melee energy on ANY kill (ability/weapon/shatter etc). · The 20% is unaffected by the ability energy scalar, much like Lucky Raspberry. That's it. The problem with these 3 exotics is that they all get outclassed by other generally better options, such as Inmost Light. And that's sad because Inmost Light affects all abilities. I assume this would be a very easy change technically as well.