That was actually an experiment for Pantheon which went quite okay more than once. Been using those quints on Akali for the past week as well, but hybrid pen marks.
TKiller wrote:me = geniusHi Akali
I feel like spellvamp quints are highly underrated overall. With WotA being weird as it is now, Akali sustain nerfed really hard back when Lich Bane became magic on-hit, and still no spellvamp items for AD champions Gunblade AD part being nerfed long ago, I find them worth using myself, especially over AD quints which I pretty much only use for stuff like level 1-2 kills.
On Patheon those allowed me to clear waves mid-end game between skirmishes much faster while still recovering HP. Much more minor sustain improvement early, but noticable. Also despite E being AoE, it still recovers a plenty of HP when used on a pack of minons/more than 1 champion.
I don't expect to kill opponent before hitting level 7 on Akali, when you have more than 1 ultimate stack. At this point AP quints become much less valuable with base damage rising and ap/level kicking in. If the laner is terrible enough to get killed before, you don't really need AP quints either. Questionable in friendly gank situations. Doran's shield + pot start kills your pre 4-5 trades, AP quints or not; Doran's ring + 2 pots make your enemy much stronger, so you have to use Q to trade less, and when you actually trade, those 2 health pots come in; Flask+pots - you got the point.
Vlad is yet to be tested but revolver gets you a low amount of ap for a high cost, WotA upgrade is quite costly and gives less AP than before, useful CDR and useless mana regen. Spellvamp quints give you half of revolver spellvamp, making getting AP items straight away more tempting. MS quints might still be king for Vlad though, I don't know.
Mundo! Last hitting with cleavers is costly even with half cost returned, hard to notice with high base hp regen, but it actually is. Much more noticable if you're getting damaged while doing so. Spellvamp quints make cleavers return much more health when hitting, also later in the game hitting high health targets returns even more (and you have a spirit visage). Plus there's not much quints impactful for Mundo anyway (%HP? Hue.)
I'd use those one Ryze, but I am currently building WotA on him and feeling quite good. They'd still act like a Doran's blade for an ADC early game.
Had funny results with Kha'Zix, but I'm not much of a Kha'Zix player. Still, insane spellvamp from isolated Q casts on low cooldown.
All in all, same with other utility quints, you sacrifice power for a unique stat. Fits my playstyle really good. Dunno how well it'll carry on when (if) I get higher in the ladder, since I'm only platinum 3 right now, got back to playing League without building Manamune Scarners top lane not so long ago.