Just watched Dendi play Legion Commander in a pub by happenstance. He played mid against a Meepo. His item build, beyond Power Treads, didn't focus on attack speed much early, he went for gank and right click. Power Treads > Shadow Blade > Desolator > Crystalis > Deadelus > Assault Cuirass and a 55 min BKB.
I've been going Treads > Armlet > naked Hyperstone > branching to AC or Mjolnir (mostly AC) and letting the ult take care of the damage. But he had a Divine Rapier's worth of damage between his ult, the Deso and I think just a Crystalis.
He skilled Moment of Courage first or second, which was weird, but by six he had 3 in Overwhelming Odds, 1 in Press the Attack, 1 in Moment and Duel. Seems like it's the standard laning build for LC. He's got the Arcana and has won over 170 duels so far.