User blog comment:Fistful of Force/Spirit of the spectral Wraith/@comment-5266525-20130213093014

BrienWright has it correct on at least one account. SotSW does NOT help you farming minions, it is exclusive to jungle monsters. Vlad is an insanely good farmer anyway, so any perceived help this item gave you is probably just a placebo effect.

Additionally, it is actually not cost efficient if you don't use mana and you don't make decent use of the Butcher passive, which you did not. You'll be wasting something like 50g during the upgrade. WotA isn't cost efficient as a source of spell vamp either but it's much more useful for Vlad than SotSW. You should really just sit on your Revolver until teamfights start happening before you upgrade it.

Alternatively, if you really appreciate the CDR and want to get some without putting yourself behind, go for a Spirit Visage instead. It would have helped you trade better with that Elise as well because of the added magic resistance and healing boost and you still increase your damage because of your passive working off its health.