For start:

Of course max out Battle cry, war cry, battle orders. the rest is up to u. some mf some ress some fcr. all the basics passiv skills.
gear? well for starting lets say it is hell mode, hell cows, plaquelands and inf cows:

you dont really need anything for that. just standing there and shouting thats it.

+skills is always good. there are a lot of +3 skill +1 teleport (crappy other stats)armors out there. as a weapon u should pick up any rare nec weapon. they can have up to +30% magic dmg -30% magic enemy ress. (better than a weapon with 4+ war cry)

as a really good starter weapon and probably no one will have it bc no one picks it up: wizardspike! fcr, ress, mana, skill