TBH the nerf Vlad needs is probably to his Q damage early game and his passive health.
If you don't know the scaling, it is 90/125/160/195/230(+60% AP) and the heal is 15/25/35/45/55(+25% AP).
It could be a little lower early game, seeing how much damage it does, maybe knock it down by 20 damage at each level, so 70/105/140/175/210.
His passive health gives him bonus health equal to 140% of his ability power.
That is way huge, if he gets 100 AP that's another 140 hp, while it may not seem like much, come late game where most Vlads have 700 AP or higher, they are gaining 980 bonus health with 700 AP, that is way the hell huge.
Personally speaking, it should go down to either 120% bonus health from AP, or 110%, and if that is too much there are other problems with his kit rather than numbers.
And I know Riot has said nerfs/buffs can make or break Vlad, I realize this.
