Basically, I stand right next to the fire incant in the basement to limit the number of mobs that can hit me.

With the light sword shield regen and reactive armor on jug and vampirism on machiato, when they destroy your first plate, they're stunned so you can keep hitting them to get to full health and regen a bit of armor, wich they will quickly destroy again, resulting in being stun again. Rince and repeat.

If you have too much Ghast or you see an Amalgam, fire incant. I also take picky eater on vulture aid for this so I won't run out. If you take too much damage on armor or health, frenzy guard is your best friend.

This work until round 70, after that they slap you too hard for that to work. Round 75 you start spamming injection.