I'm trying to solo Darkmoor on my life wizard, and while Howling Cheney was pretty easy, Sir Blackwater is proving to be a much more difficult boss. The fact that he can cast attacks from three different schools is making it especially difficult to last long enough since I can't tailor my defense towards a specific school. I've tried defensive setups and offensive ones (defense has around 70ish universal resist and like 87 resist to storm and offensive setup has like 114 damage with poor resist, both have very high outgoing) but neither have been able to work out.

Any suggestions or advice welcome. I'm largely following the gear setups from Final bastion's graveyard solo run.