This is a effective build for farming and pushing lanes, and great for teamfights, if you already know, Nasus's Ult is a % over time, and knowing this. We should use that as a great tool for dmg, This is how i play Nasus.
i try for a giants belt 1st for extra hp and work for my shoes, and depending on whats going on i'll go sheen or make a sunfire cape fast, but playing this build i've notice i'll be able to 1v2 easy if its melee class's against me but that's around mid game and also knowing your opponents.
Enjoy or try or w/e gl & hf. i dont remember you what order you can level each skill at but i try to max wither asap for team battles, and get 1 point in Q skill and farm it as i grind for OP dmg later on with sheen as well. btw if you make enough kills turn that sheen into a trinity force.
you get lvl 2 of his ult on 11 but i dont know how to change it xD