Nasus is a Tanky Dps late game carry, who revolves around being a farmer for 75% of the game and harvesting the crops for the rest =D. Nasus has a weaker early game then many champions, but has the potential for the most late game damage on one skill in the game.
Nasus also has a bad *** voice which makes him 30$ more awesome.

Passive: Soul Eater- Nasus drains his foe's spiritual energy, giving him a natural 14/17/20% lifesteal. The lifesteal value increments at levels 1, 6, and 11.
Passive lifesteal, Nice as it keeps you in lane as you farm. Late game if you farmed your Q alot this gives you VERY HIGH sustain.

Q: Siphoning Strike -Nasus's next attack will deal an additional 30 / 50 / 70 / 90 / 110 damage. Siphoning Strike permanently gains 3 damage whenever it kills an enemy. Cooldown 9 / 8 / 7 / 6 / 5 seconds. Cost 20 / 25 / 30 / 35 / 40 mana.
FARM ALL DAY, GET SHEEN, PROFIT!

W: Wither- Nasus ages his target, slowing their movement and attack speed by 35% and reducing it further by 3 / 6 / 9 / 12 / 15% each second for 5 seconds. Cooldown 15/14/13/12/11 seconds. Cost 80 mana. Range 700.
A spammable mini exhaust. <3

E: Spirit Fire- The target area becomes desecrated. Enemies in the area have their armor reduced by 20 / 25 / 30 / 35 / 40 and are dealt 55/95/135/175/215 (+60% of ability power) initial damage and 11/19/27/35/43 (+12% of ability power) magic damage each second for 5 seconds. Cooldown 12 seconds. Cost 70 / 85 / 100 / 115 / 130 mana. Range 650.
Reduces enemy armor, good to increase your teams damage output.

R: Fury of the Sands- Nasus becomes empowered in the sandstorm for 15 seconds, gaining 300 / 450 / 600 health. While the storm rages, he drains 3 / 4 / 5 (+1% of ability power)% of nearby enemies' health120seconds. Cost 150mana. Range 20.
Who let the Dog out, Go this when you want to kill OR as a heal bait. You deal % AoE damage while in this mode making you even more threatening.

Skill Order:
Combos:

W-E-Auto-Q-(R if going for the kill)

Hecarim (Your W WRECKS him), Irelia (K farmfest begin), Tryndamere (Oh look I just clicked E and your screwed), Darius (Get some armor, ignore him and farm), Cho'Gath and Galio (They wont shut you down early and this will just turn to farm) fest.)

Teemo and Kennen (ranged), Riven, Olaf, Rumble, Garen, Fiora, and Renekton (Zone you out early prevent farm QQ), and Vladimir and Karma (Sustainy and tanky, they both have great scalings).

• FARM (Siphon)
• FARM MORE (Siphon)
• Get Gp/5s if you are fine in lane to make late game come faster.

• Do not let him farm
• Force objectives so his team will fall behind before he can help.
• Bait his ultimate out and then avoid him, it is very annoying to fight against.

Philosopher's stone- Mana and Hp regen in lane + Gold bonus

Heart of Gold- Nice if you are behind for the health and gold.

Trinity Force- core item you use every stat, makes you a carrying monster.

Frozen Heart- Cdr and mana get this if they have alot of ADs.

Maw of Malmortius- Makes you scary vs AP teams, You can be low with your ultimate as an insurance card. Do not forget to use it!

Bloodthirster- If your team needs an AD carry (Your farming your Q anyway).

Last Whisper- Good if the enemy team gets alot of armor.

Guardian Angel- When you get fully farmed Nasus, this makes you godlike.

Weaker in this mode. If your team loses early they will surrender before you can do anything, even if you are ahead in your lane.

Better here. His W can cripple an enemy AD carry, A farmed Q can wreck any enemy, the E provides more damage fr all physical attackers on your team. You also have a jungler you know to help you get ahead early game to snowball into late game.

This is my top facts Nasus. Nasus is a champion who likes to farm, playing nasus helps you get better at CSing and last hitting as a melee Champion (FACT). AS always have a good day on the fields of justice and hope you all enjoy.

SERIES UPDATE:
I plan on releasing these every day/other day until I get all of the top lane picks in the league ( about 50-60 of them) if there are any requests leave in the comments below and ill work on them. I want to make this series for others to better understand the champions of top lane. Once I am done (Or once I have a few top facts out) I will release some Facts about top lane mechanics, eventually I will probably put everything into one generic top lane guide, however until I do that I will continue to watch and update my blogs as needed. Tips and tricks I missed under my Top Facts would be helpful if you put anything I don't have in the comments I will be sure to add it. I will be forming a guide called The complete guide to Top lane or something in that nature. The intention of this series is not as a "Build guide" or a "play guide", these are more like facts you should know about the champion. These are to inspire people to think of new champion possibilities they might not have thought of or to help a new player with the champion. I do not list runes masteries or a set build ( I give a kind of recommended items) in here due to the fact I want people to think of that for themselves and try new things. This series is an attempt for the LOL community to try new things and have fun in a fun game. Thank you for reading and have a nice day :P