Thread:Willbachbakal/@comment-28817306-20161009123929/@comment-1330314-20161211055307

Sheen does technically synergize with Darius's W, but most of the time you're not going to be autoattacking enemies enough to make great use of it, and the relative lack of tanky stats on Triforce makes it a risky purchase. I'd recommend The Black Cleaver instead, which shares the Phage passive with Triforce (which also means you can't have both at the same time without wasting some gold), but is also guaranteed to apply five stacks with a single hit, thanks to his passive (each tick counts as its own instance of single damage, so five ticks leads to a guaranteed five stacks with just one hit).

Also, life steal does not apply from Darius's ult, and I'd recommend not picking it on him. Life steal only applies on basic attacks, so it'll proc off your W-enhanced attack, but otherwise the only way it'll apply will be through basic attacks, which Darius can't land all that reliably. If you want more sustain, I'd recommend Spirit Visage instead, which boosts his Q heal.