Karthus - Not viable anymore.

His damage scaling is terrible.. literally at over 1000ap he gains 500 damage to his ult.. his other abilities dont even get half that bonus, ALL other AP users have huge gains, yes I realize his Q gives you double for hitting a single target, does that mean it deals damage worth a crap at over 1000ap? no... you can barely tickle anyone with karthus since like a year ago unless you are so far ahead of them and they have no items at all.. Does noone care? wheres the love man? Also his ranged attack is hard to creep with as it moves slower than anyone in the entire game. it has always been that way and I have always wondered why the hell it was so terrible.. slow motion blast moving out of his staff you have to time it way ahead to hit just right when you click instead of just clicking and you hit.. its awful, especially in a game where last hitting gives you gold.. yes I realize his abilities can make up for this.. its just annoying.. so why have it that way?\

Please riot give me a sign.. let me know you have not forgotten about this old dusty reaper and put some polish on em. Rework it.. do whatever it takes.. he is just not worth using anymore. :(

To everyone who seems to want to argue about how great karth is and how you "main" him and how amazing and how much damage he deals.

I will upload a video soon so you can watch it and tell me how I "picked the wrong items" every time. or that I "need to watch someone else play" like having the exact same amount of ap will change his damage on any skill because I play bad... how does that even make sense? It doesn't, because its math and is an ingame variable not altered by how you play the damage and scaling remain exactly the same and that is ALL that I am talking about here.