Well, boss not dead yet. He spawns shit load of mobs on taking damage. Game almost freezes and when unfreezes his stacked atacks hits you at once
Items:
weapon - "Lesser oath" in single socket flail, later replaced with rare war hammer because +1 to paladin skills and 40 synergy eficiency.
body armor - "Lesser damnation" runeword, found 3 socket armor and made that rw, oskill gives better defensive stats for 45sec, using when not lazy
shield - rare with best block and defense plus atacker takes fire, cold, light dmg and resists, current one has 4 sockets - all with perfect diamonds
gloves, boots, amulet - hsarus set
belt - one set item (don't remember the name, but it has a lot of poison dmg)
helmet - rare with best defense and max resists
rings - one with 15 to all resists, other to max resists
Charms: custom charm cubed with life on melee and life tap
paladin charm cubed with elemental damage add ons, did not tried it out yet
horadric charm - 5/5 resists + cube it with izual triangle
Merc : act 2 poison mer - uses dagger with xx-yy to poison, shield and some crap items. His resists are way better than mine. He runs away when taking damage which is ok. In generaly i just stand in front and wait for mobs to come at me. They try to suround me and ignore merc this way - i don't die because over 100 hp on melee (zeal - 4 hits). I kill them from one side, merc from other and ranged mobs kill themselves because of damage reflect.