I use my necro thrower and it works great. I ran it with a team of 3 (could easily be done with 2).
Char 1:
Disco Tamer (I prefer disco tamer mage, preferably with vet and/or mystic)
- Gets bosses on pets
- Discords bosses (if he can successfully do it before the thrower kills it

I use the one instrument that's white with demon/undead slayer)
- Inviz's people if boss gets on them
- Heals pets and others
Char 2:
Necro Thrower (template below)
- Tanks bosses
- I prefer to use the Conjurer's Trinker (for Undead Slayer) and a Demon Slayer weapon so you never have to worry about switching weapons
120 throwing
100 tact
100 anat
100 resist
100 spirit speak
90 healing
70 chiv
40 necro
Both chars should run Bone Cutting script for final bosses.