Most fun Duo build for newbies?

Hello,

me and my friend are gonna start playing this game from tomorrow playing duo 100% of the time, could you recommend any fun and effective duo build combos (provided with links for builds, if possible)?

I've tried to google it, but it shows only outdated information/ungooglable builds or there is no info on how builds work in duo (I mean in thematic sections for every class).

My friend wants to play witch, and I'm open for any character (preferably shadow/duelist, but it doesn't actually matter).

Bump

If one of you plays a multicurse caster you'll have an easy time with most of the content. As playing melee can be tough on newcomers I'd recommend an archer for the other character, shadow or duelist would either work.

Pone bow user and one arc caster would be my recommendation.