Runaan's and hydra
I think I speak for a lot of people when I say that runaan's is an incredibly niche item, mostly because of the damage you lose in getting it and there are so many better attack speed items for ranged adcs, on the other hand, lifesteal items are in short supply and variety due to the fact that hydra is really just a melee item only and all that leaves is a support item, a crappy bloodthirster knockoff that you shouldn't need if you're good with mana, the genuine article, and the tank buster. Also I can think of a lot of melee champs that would enjoy the benefits of runaan's attack speed boons alone, and it's just the passive they're missing out on. So, if I could propose something, we could give passives for melee and ranged champions for each of the two items so that there is more variety for each type of character, they could be very different, possibly even weaker or stronger that the original passives, I just want to feel like the option is there for anyone interested. After all, melee attack speed seems a touch difficult to get without going full-on damage or it's just not that good of an item in the first place to get in my experience