It allows you to melt the bosses fast and not allow them to spawn mobs and become overwhelmed. And many other things that can and will go wrong.Ī melee char with lifetap and lots of crushing blow is the less frustrating way to do Uber Tristram in my experience. You also need to keep in mind that if you allow Diablo to spawn his pit lords that are immune to all damage except physical, even with the strongest mercenary you will be overwhelmed. Uber Mephisto has conviction aura and it will melt you with lighting damage. Have this in mind, for ubers it is vital to have max lighting res, and ideally all maxed.

I think the strategy with Marrowalk is viable only with full tals. Maybe it would be easier with a merc with Infinity…but still a very big challange in my opinion, especially with the build you have in mind. Doing ubers with a sorc seems to me like the kind of challenge you take when you completely exhausted all the others from the game. But it is very tedious and requires attention an a stash full of rejuvs.

There is a strange strategy were you could use Marrowalk in boots slot and use bone prison and try to confuse the AI and isolate the mobs and ubers. Use the sorc to farm items and runes and make a smiter or smiter/zealer dedicated for Ubers(personal preference…other builds and chars are more than viable). It was doable with firewall sorc before nerf.

Diablo 2 spirit of phoenix