1.10 Epiphany

[Wrathraven]

In lieu of Rainbow Facet, the Hand of Justice Runeword is similar (100% Chance To Cast Level 36 Blaze When You Level-Up, 100% Chance To Cast Level 48 Meteor When You Die), and probably easier to aquire.

Plus, it's not bad as general-purpose weapon mods, and works on any 4-socket weapon.

I did consider Hand of Justice for my Act2 Merc, but never got around to trying it.  I found Breath of the Dying to be the best general-purpose weapon, with Crescent Moon as the backup for bosses that beg for Static Field.  Baal in Hell came closest to getting the HoJ treatment, but Crescent Moon got him.  The Festering Appendages were great, the merc could handle them easily, and hitting them triggered the Static Field to knock down Baal without the Merc needing to get close to him.

-rcv-

um, well, maybe in the beta where you can hack in whatever you want, but in the actual game Hand of Justice and Breath of the Dying will be near-impossible to ever complete, so "just" finding a unique jewel would be much easier.