Follow the storm mage Witch build on maxroll, my infernale hound never die.
thats a minion build with minion nodes slotted, of course it's going to stay alive
I only put gem supports on it and the 2 points by witch start, cuz I'm playing a caster.
which was what I was getting at, it's not very usable out of the box unless you're also specced into minions, regardless of having high personal defenses.
I've got 90% max res and 63% pdr (not armor), so 20% of w/e's left being shifted to the dog shouldn't be making it flop over in 2-3s, but it is.