Manamune slows the build down significantly. You could do without it.

@Herucles

You may want to focus your runes abit. Maybe search for Searz's Rune Build, since your glyphs are not too good. Maybe focus all your Quints and all your Glyphs to be the same type?

Manamune is not necessary. After getting Sheen and reaching level 11, Mana problems should be a thing of the past.

Boots of Swiftness is also not neccessary. It may be taken, by Ionian boots help early on, Zerk Grevies in mid-late game, Merc/Tabi helps all the time.

Your items cancel out your boots. You may want to look into that.

Overall good Tank Nasus build. Despite having Infinity and Manamune, your damage lies in Siphoning strike instead of your damage items.

@Baxxie

That doesn't work. Infinity Edge works on Nasus who constantly hit their targets to oblivion. Getting Youmuu might be good, but Frozen Heart is ****. You don't NEED extra armor when your magic resist part is ****py. CDR is ******ed. To spam W, I find it wasted. A good AD Nasus can easily kill anyone by just Siphoning strike twice and lots of hitting, with or without slow. If you constantly spam W, you won't even be able to charge up for your Q, which isn't good.

with nasus passive getting a LS item early/mid is not necessary and the extra 1k mana allows you to constantly use all of your moves for an extended period of time. Also with swiftness boots comes the mobility to chase down that opponent that has flashed after you have used wither on. Nasus has no need to reduce his cds when its the 1 big hit that kills not constantly hitting the same guy over and over.

Bad build is bad. Swiftness Boots and Manamune are likely to be a bunch of wasted item slots.

Also, Inf Edge, wtf. Get Youmuu's or Frozen Heart for some CDR, so you can constantly W.

Good build, but I think I would switch Manamune out with Blood Thirster or something with lifesteal, good guide nonthe less though:)