Izzy Trick
 

For anyone who doesn't know, when you go to kill Izual, and he's surrounded by a bunch of other monsters, if you just concentrate on Izual and kill him, all the other monsters in the area die (similar to Shenk).

Just a little info for those of us who never tried it. ^_^

but if u didn't know, izual usually has a lot of hp..... a lot more than shenk so it would actually be better to kill monsters nearby and actually he usually doesn't have A LOT of monsters nearby

If you have massive life leech or some hp draining spells, it will work out very well for you. I always attack him first and say fuck you to the rest of the guys. With my zelaot (botd zerk, exile, enigma setup), he had no problem doing this.

In hardcore that would be a bad idea especially in hell but in nightmare it can be done if u have good resists and crap.