I was looking at the Hunger skill for the Druid and while the skills kills your damage output, CB doesn't care about your damage. Meanwhile, the skill does massive life/mana leech. This seems really viable for killing bosses does anyone have thoughts on this or tried this?

I'm running chars through HC and a Fury Werewolf with Hunger and Feral Rage seems workable.

I would assume CB works but generally outside of normal life leech doesn’t work on act bosses. And with no damage CB would take forever to finish off

Should works yes
If you use an amp source as well ur crushing blow works better, however putting on dracs and using fury deals dmg much much faster. For early play 2 sigon parts = 10% ll, i use 2 sigon's part on my early ladder kick/trap sin, gloves and belt, who gives me 30%ias(which werewolf wont benefit from ) and 10% ll