I recently respecced to a ranger and tryed out a spec I found cool. I'm level 25 atm.
I got a xbow with 5% Lifesteal and 59% Melee Damage Reflected.
With my other eq. I have 7% Lifesteal and around 6k HP.
With a few potions. Bosses like the Algor are pretty easy. Gasous Blast gets the fodder easily, and my low defense and high hp and high dps/lifesteal mixed with 89% Melee dmg reflected gives a super combo. Fighting Algor alone with all minions dead I can keep alive just on Lifesteal and the dmg reflected is around 50-100% of the dmg I do myself.

This of course only works on melee bosses.
Anyone else got any fancy ranger builds?