https://www.youtube.com/watch?v=SakhF0xqTks&t=461s
here is an interesting two handed close combat build combined with Hydrosophist. It doesn't require any intelligence, thus you will deal MOSTLY physical damage, plus some Hydro skills that don't scale with Intelligence which deals Magic damage.

I also recommend trying a dual-dagger witch build. You'll again deal Physical Damage, but from far ahead, with your skills. Necro spells are so good in later levels in regard of both status effect and damage.

https://www.nexusmods.com/divinityoriginalsin2/mods/133 Here is a mod if you are interested. This makes Necro very fun and reliable without breaking the game, not overpowered.
The goal is using your powerful necro skills from range ( Blood storm, Infect, Grasp of the Starved... ) and keep blood surfaces around - apply bleeding. While waiting for their cooldowns, using Scoundrel to deal considerable amounts of damage via backstabbing. This build gave me the most fun among all.
Note : Sorry for my bad English.