Searching for Vlad Passive ideas

So i'm looking to make vlad less of a cog in the wheel in the process of making spellvamp bit more relevant. so as to be able give spellvamp a tiny nudge (not much), i'm talking something like 2.5% or 3% spellvamp quints and this idea: http://boards.na.leagueoflegends.com/en/c/gameplay-balance/TaXPYTao-spellvamp-100-scale-on-aoe-but-with-100-cap-as-thoughwas-singletargetoverlap-w-current-equation

without vlad going nuts

just have one so far but was hoping you guys could contribute some.

Passive: Crimson Extract: Vladimir gains ability power equal to 2.5% of his bonus health and bonus health equal to 100% of his ability power. These bonuses do not stack with themselves. Without either gain affecting the other. **+ 0.5 health regen per spellvamp. ** there would also be absolutely no looping involved. just flat stats.

I find 's passive to be particularly strong, especially if compared to say 's. I think hitting his passive will make us realize that it wasn't necessarily spellvamp that made him so strong after all.

or just make it so his passive cannot scale with bonus items like deathcap.