Tanky Sirus farmer build

I am looking for a tanky build that can farm Sirus easily. I will be honest with you, my boss mechanics are pretty bad, I am looking for something that can forgive some mistakes during fights.
So far, my favorite build was Mana Guardian with Herald of Agony, I am looking for something similar in terms of tankiness / single target dps. I also enjoyed HoWA CI jugg, don't like stationary builds.

I was thinking about summoner with spectres, but I am not sure how safe those builds are and which spectres would be best for my need.

Can you advise some build? I gathered some currency with my VD necro, it doesn't need to be cheap / starter.

anyone? or maybe should I post this question in other section?