Dark Urge definitely has drawbacks:
- Some side quests (and by extension cool items) will be inaccessible as a result of the lost companions (the awesome rapier that summons a Cambion which Wyll gets for example)
I heard that there's a way around that, it's tricky but you have to recruit Wyll and Karlach, kill them before raiding the Druid Grove, resurrect them after the Goblin party.
I have also found that in BG3 initially, that I as quite evil character, was always a little isolated.
If you come to Jaheira, for example, and now basically want to be the evil part, it's going to be hard, because you tend to lack a counterpart.
Ketheric Thorm seems like a good evil counterpart to Jaheira, he might be a bit angry that you killed his daughter, however he does mention that he can resurrect her again so killing her is temporary, but I would recommend that Ketheric use modify memory on Isobel to replace her memories of worshipping Selune with memories of her worshipping Myrkul or the Absolute so he doesn't have the same thing repeating as last time, also remove any evidence of Selune worship in the Shadowcursed lands, specifically Last Light Inn to be extra safe, as well as gaslight Isobel by telling her that the Nightsong living in the basement is an insane crazy person who compulsively lies and he can keep his stone as part of our alliance just like Gotash.
