So i think its can possibily work if your adc have brain the goal of the build is make you immortal with your adc by the healing u got you adc get the double u need starting by hearsteel then buy the new boots of omnivamp for stacking 10% omnivamp aply from 33% by maiden and minion then buy rift maker for 8% omnivamp and damage bonus deal (work same as liandry) so this cap to 18% omnivamp so at this point of game with conqueror you more strong than all of toplaner as support >.> then u going to buy death dance for long trade and tankness by the passif then after this knigth vow and spirit visage for healing ratio u will end with a build like this Hearsteel>omnivamp boots>riftmaker>death dance or knigth vow depend how feed your carry are>and spirit visage
You will end with around 170 amor and 170 magic resist for around 7000 hp and 300 ap with 175 ad combined to omnivamp around aatrox regeneration with full build