I keep finding myself losing to the Nightmare Butcher. I was wondering if anyone out there had any tips I could use to keep me alive in sticky situations.
I tend to avoid HC bossfights until I get to a point where everything up to the fight is basically a cakewalk (except for champs with stupid affix combos. Then I just reload :) )
Obviously, good gear is also important, but in The Butcher's case it's also a matter of learning the fight. He telegraphs his grab and his charge very strongly, so those shouldn't be a problem. Maybe practice on an SC character until you can kill him in your sleep :)
I find that fighting the butcher is much easier with multiple people, since he only focuses on one person at a time (which gives you time to run away and heal up), and since anyone can grab a health-well to heal everyone.
So, fight him with some friends, or if you don't have any, join a public game on the previous quest.
Well, besides just being a smart player (having potions, never attacking enemies with less than half health, making sure you upgrade your gear, kite enemies as much as possible) I found that this little trick can get you out of a boss fight that you know you are going to lose.
The idea is to exit the game before you die.