Well, I played at nanaki(azurel2 aka supremel2) for while, and I used this config:
DC robe set +6
Am +acu
Any staff with mana up SA(for buffs)
Any staff with mental shield SA
then you switch to IC/Tallum heavy set(I was using IC set, but Tallum set worth too) and take a DB+focus / Bo+focus+++.
Buffs config: Flame chant, earth chant/war chant(if you're figthing against a figther, use earth, if you're figthing against mage use earth ), Soul shield, chant of fire, chant of battle, chant of rage, chant of predator, chant of fury, chant of eagle, chant of spirit and cov.
Also spam soul shield with any staff with mental shield SA till you get mental shield buff.
Dunno if you/your clan has epics, but if so, take atleast a Zaken/QA.
Edit: ah I almost forgot about dyes, I used to +4 STR - 4 DEX/CON, and +5 WIT -5 MEN.
DC is a oly most if you has good gears or good skills you can win almost all classes (atleast it could win on c5).