League of Legends [New forum, check OP!] - Page 501

*NASUS*

I main Nasus and probably play him more than anyone in the game cuz he's my dog.

Siphon Strike - Physical (His tooltip is broken to say its magical right now. Riot posted this on the forum)

Wither - No damage but it's the best slow in the game. -35% movement and attack speed and an additional 15% every second for 5 seconds.

Spirit Fire - Magic. Although it makes you do more physical damage by reducing armor by 40.

Fury of the Sands - Magical AoE damge. All damage they take from your AoE is converted into BONUS physical damage (250 max from the bonus). With this, Nasus can do insane damage.

You'll probably have Trinity Force, but at least a sheen (you should). So here's the right way to team fight with Nasus:
-Wait for someone to initiate,
-cast spirit fire in the middle for -40 armor debuff,
-do whatever you need to do to get into the middle of that fight. Cast your ghost/cleanse if you have to.
-Cast wither on their carry or whoever is going to damage your team the most. (Wither will make someone like Twitch a non factor for basically the whole fight.)
-Hit someone with the sheen proc
-Pop your ultimate and hit another sheen proc
-Use siphon strike and hit with that plus sheen proc

It's very important to time your sheen procs for maximum damage without overlapping siphon strike until you need too because of it's four second cooldown.

You see? You can do crazy damage with Nasus without building virtually any DPS item. At level 18 you'll have your basic attack(185) + potentially maxed ultimate(250) + siphon strike(200) + sheen(387) =1022 damage... minus whatever their armor is giving them after your debuffs.

I admit 200 siphon strike is a bit generous, but by level 18 you should for sure be around 120 or so.

Nasus is all about burst damage and it's not unusual to hit an Ashe and take half her HP away in the late game. He's a support/off tank, not a champ you're going to solo mid and carry the team with.