I go with a physical dmg build, and it does very well for me.
Meki pendant + health pot
Chalice of harmony
The attack speed boots
Zeal or Sheen
If they have big tanks late game, get a bloodrazer, if not, a phantom dancer works well. If they are targeting you, an Aegis or warmogs works, and if you do go with an armor that gives you lots of life, an Atmas Impaler does well. After the trinity force, I tend to go with a counter depending on the enemy champs.
Chalice is very important, because you will not run out of mana, seeing that most of your damage comes from autoattacks while the enemy is stunned/slowed.