This is my first guide, and i chose to do it on nasus, because i see most of them go either straight tank early which isn't the best if you want to contribute to your team in mid-late game. This nasus guide will focus on the damage in early game, and getting those important defense items during the mid-late game. I also have seen AP nasus, but the amount of AP you need to be efficient, is somewhere in the 500-800 range. which isn't the best if the other team decides to ignite, let alone focus you, you will melt, VERY fast. Also, if you are reading through this guide and have any suggestions on what i should change, please feel free to do so in the comment section. I will try to come out with videos later on displaying game play of nasus as well. Important! if you are an experienced nasus player, just use the build before you rate or comment.

pros:
easy farming after sheen
difficult to push out of lane after level 6/sheen
spirit fire learn it, live it, love it
you hit really hard, while being tanky
cons:
squishy before level 6
easily pushed out of lane against mordekaiser(who isn't)
no gap closer or escape, YOU MUST TAKE FLASH!!!

The items i chose are pretty self explanatory, when you go for the defensive items later on, be sure to build from the ground up, and judge it like you would any other game, do they have a fed AD or AP carry? things like that, will determine what you buy and if you live through a fight with 20 HP or none.

His farming is very simple, all you do is last hit with Q, the only times you spirit fire will be to engage an enemy, or clear minions off the tower quickly, if you do anything of than this, it will destroy your mana pool. using your W on someone you aren't going to try and kill will also destroy your mana pool. your ultimate is alot of mana, use only to kill/gank, baron/dragon, or to secure your getaway when ganked.

nasus is a very simple champion to play, but due to his potential to expand his power via his Q, one nasus, with the same items, can be totally different than another identical nasus. The #1 thing on Nasus nowadays is to, Farm, Farm, and Farm some more, if your team complains about how you aren't in the team fights, but you're also holding up the person at top lane, just continue to farm, you gain exponential damage compared to the person in your lane when you farm.