Decimate is a powerful harassment ability. Strike an enemy from maximum range for the greatest effect.
Noxian Guillotine does more damage the more attacks you can land prior to it. Use Noxian Might to deal maximum damage.
Darius benefits greatly from enhanced survivability. The longer you can prolong a fight, the more powerful he becomes.
When Darius's axe grab is on cooldown, he is vulnerable to harassment attacks.
Darius's ability to escape from fights is limited. If you have an advantage against him, press your lead.