goddamn that sounds powerful
Yes. I might as well dump some tips for you guys to play nasus. (I'm a top main at gold III (no biggie) and i love nasus).
For summoners take ghost/flash and TP.
Never ignite. nasus is not a first blood champion.
Ghost is good for chasing and escaping, though flash gets you over walls and you can make surprising plays. Remember to take into account that if you teleport into your own turret, the cooldown drops by 60 seconds, what is great.
Reaching 1000 stacks? Its all about the cooldown reduction, aka CDR. There are many ways of reaching it, with items it would be to build a glacial shroud, then kindlegem, and then a frozen heart and after that another glacial shroud. If against AP champions rush kindlegem, glacial shroud, then build spirit visage and after that another glacial shroud. That should get you to 40% pretty fast. A fast way of stacking is not to attack the minion until it is as low as you get it for last hit, or if you want to push a bit, then just Q a minion each time it is available. If you do not want to end up in enemy territory do not basic attack it and Q at the same time. a frozen lane is good to have if you want to stack. Oh, i forgot to mention, the third and "hardest" way to stack, aka rune dedication. buy cdr glyphs (and quints), because you rarely go against AP top anyways. You get 30% cdr off the bat what gives you a great start for stacking, because if you do not have cdr at the start the cooldown of your Q is ~8 seconds lvl 1.
I prefer maxing E over W because E gives you armor reduction making your Q stronger. If you have a big lead of the enemy, (say 3 kills) and the enemy jungler is a champ concentrated for dmg and no cc, for example yi or kha, then you can 1v2 them if they come to gank you. If both of them are AD, and you go for frozen heart its even easier.
As for laning phase? Play passive. I'd suggest don't 1v1 your opponent until you have 150-200 stacks. I often win the matchup pretty easily at that point. If the enemy is AD, start with cloth armor and 5 hp pots. That gets you ahead in glacial shroud's building path, and 5 hp pots give a pretty good sustain paired with your passive (bonus lifesteal).
Build? Just tanky. Never dmg, you get everything from your Q. One exception for that is to build trinity / iceborn gauntlet, because of its passive what makes Q do huge amounts of bonus dmg, and that is one of his core.
I'm sick so I cannot continue, but i hope this helps some people.