Blade of the ruined king has officially died in the game for adcs. Why buy a cutlass that is 1650 gold and only gives you 25 ad when you can buy a BF sword for 40 ad, worth 1300 gold paired with brawler gloves for a zeal to get the overpowered crit heals?
No need to even buy lifesteal on adcs anymore. Just get the vampirism mastery, crit heal keystone and you just need to stack crits. Runaan + IE + any other zeal upgrade combo is op on adcs now and since runaan's can crit now, you'll be getting heals from every thing it crits.
Buying two zeal upgrades becoming a standard for me for a lot of adcs except some exceptions.