What are your favourite Blood Mage builds?

Hey! I’m very new to POE, puzzling things through and hoping to get your opinions. I’m currently playing a three element build but damage has dropped off in A1 Cruel. I’m going to start experimenting more with builds and don’t necessarily want to just copy one from a streamer so was wondering:

What has been your favourite BM build and play style?

What have you been having the most fun with regardless of efficacy?

What are your favourite/ preferred/ most interesting skill and support gem interactions?

Thanks for your thoughts! Plan on doing a lot of reading and playing around today and everything helps!