Ghostblade/Righteous Glory Darius?

Darius's main problem is getting kited and not being damaging enough when he actually does get in range. You COULD play Darius as a pure peeler, but even hardcore peeling top laners like Maokai can also engage if needed. Not being able to engage as a top laner is a huge issue.

I think that a build like essentially solves all his problems. With and , Darius overcomes his main weakness: actually touching the enemy team. Even with an initiator, Darius is often too slow to respond in time.

In lane, all the items help you: brutalizer is an amazing rush item for damage, Catalyst gives Darius much needed sustain, and you can just sit on Avarice and farm if you are crushing your lane opponent as Darius often does against melees. Once you have or you will be a threat in teamfights; get one of them depending on what you need at the time (damage vs. sustain) and get the other as you see fit. I'd still say get both since later on, you'd probably need sustained speed and activate the items in sequence.

This final build is also not that expensive compared to most bruiser builds, since the most expensive single component is the pickaxe (bought to last-finish Maw) and doesn't require completion of a Hydra or another high priced damage item gold sink.