Your Win Condition
Land your pull (E).
General Strategy
Lucian only has his E dash for disengage. Position so he cannot Q the minion wave and hit you. If the Lucian player is competent, they will kite perfectly and use W (Relentless Pursuit) for MS to stay out of Darius's E range. Stridebreaker is a great choice.
Trading Patterns
Once E is landed, it should be a free kill.
Wave Management
Their Win Condition
Poking Darius down with Q. Kiting Darius using W movement speed to avoid E.

