Toughest Prime Evil

[Wyrm]

The toughest prime evil, imo, would have to be Diablo. Mephisto is pretty much a joke no matter when you fight him. Baal is incredibly easy if you've got Decrepify (on charge for the non-necros), the only snag is when he summons a clone of himself, and then all you need to do is go to town for a few seconds, go to another area, then go back and it usually disappears. If not, just repeat the process.

Diablo, on the other hand, is a complete pain. If you get caught in his lightning hose you're pretty much a gonner. If you get caught in his firestorm, you're a gonner and then some. Only his physical attacks are something that can be taken somewhat lightly, and even then his cold touch is a pain if you don't have cannot be frozen somewhere on your equipment.

In Hell, I had a Charged Strike Zon waste him, in the star, in well under a minute, and she was not twinked. She owned him in a way I did not realize was possible.

Heh, smiters w/CB and Life Tap charges slaughter bosses even faster. Even when I'm only using a Crushflange as my only source of CB, boss fights rarely last longer than 1-2 castings of Life Tap.