My first Guide/Build

EXPLANATION:
This nasus build owns early game and as long as you farm with your Q you shouldn't have to worry early game about damage. I think Mercury Treads are a must because when your chasing someone down you don't need anything to slow you down. Trinity force well thats self explanatory considering it rapes **** with Nasus. Guardian Angel will help you be more tanky and since your passive is lifesteal you can pretty much farm all day and not have to worry about some minion mass coming to kill you, Not only that but it does give you a revive if your getting ganked! With an Infinity edge you will crit over 1000 at like level 13 or so. I get it because it adds to my damage and since your Q can crit with sheen and its self already it hits crazy. After my IE I usually go for a Madreds Blood razor since people try to counter my Q by massing HP. Madreds increases my attack speed, damage, and armor and since its 4% AP damage every hit it helps me solo anyone with my ulti on. Once I get my blood thirster its pretty much GG. The blood thirster will have me healing 150 each hit and 500 with my Q. So if I die I'll revive from my guardian angel and throw a little spit fire over me and Q and heal back to half hp. Hopefully I wouldn't have ultied yet and I can use once I revive, once I have ulti and get my hp back it literally turns around the battle.

I can't say much about runes considering I only have 2 rune pages just for things like attack damage and cooldown reduction with armor pen and another with Ability power and cooldown reduction and mana regen with magic pen. But If I were the person who cared about runes I'd say to get Armor/Magic resist but mainly magic resist since your going to be getting a guardian angel which gives me more armor then magic resist.

Pros:
. YOU NUKE THE **** OUT OF PEOPLE WITH YOUR Q
. YOUR ULTI WITH GUARDIAN ANGEL MAKES YOU A PRO TANK
. YOU CAN COUNTER ANYONE SINCE YOU HAVE MAGIC DAMAGE FROM MADREDS AND ATTACK DAMAGE FROM IE
. KILL THE CARRYS WITHIN SECONDS.

Cons:
. YOUR A LITTLE SQUISHY
. YOUR Q RELYS ON HOW WELL YOU FARM WITH IT
. STAY AWAY FROM FAST ATTACKING CHAMPIONS LIKE VAYNE AND MISS FORTUNE.

I've never tried jungling with Nasus but If it works.. Well goodjob.

With my masteries I like to go 23/3/4 since I mainly base around attack. I get 3 in mana regen to help you farm at beginning with saphire crystal. 1 in ghost because it helps alot. 3 in defense because you need magic resist!!

With summoner spells I usually go with IGNITE and GHOST
. Some people like to use FLASH but I don't think its worth it with Nasus considering the cooldown is so long and you'll be chasing alot.
. Also I've tried to use EXHAUST but it doesn't make much of a difference since my W slows them down alot.

When your far from the battle and you want to atleast get that 175 or 88 gold.. You can always use your W to pick slow them down and help your team secure the kill. When in team fights you can activate your ulti and rush in there with split fire around you and tank considering you will have alot of health and your guardian angel will revive you if needed.