Which doesn't mean you SHOULD do it. Like AD Master Yi.
And just slap as much AP onto a build as you can with a Lich Bane. There's no real special way to do it. Zhonya's, Deathcap and maybe like Athene's or something that builds out of a Kage's Pick. Or just go Randuin's + Spirit Visage after Hourglass/Dcap/LB.