Why Is BORK so special? O.o

If you're not building BORK, you're doing it wrong.

It's good because it gives nearly everything to an adc

Sustain Damage Attack speed A bit of Burst and of course, anti tank

It's basically an item that a huge majority of ADC's can use. There are a few ADC champions who don't use it.

There champions don't really have to build it. It's why 2 of them don't do so well in this meta.

The problem is that it's such a Jack of All trades item. It gives you sustain, which is good for any ADC or duelist. The %HP can act as a base damage for Bruisers, or as a tank shred item for DPS champs. The %HP on hit damage applies LS, meaning you heal more against Tanky targets, (This is where I blame the drain tanking comes from) And of coarse that passive will stack with additional LS items that an ADC might purchase. (BT, Mercurial)

Because they rebalanced it to have more AD which is better early. It is good on every ADC that doesn't want to rush triple crit or ADCs who don't work with the item

https://boards.na.leagueoflegends.com/en/c/gameplay-balance/s1u3EYma-the-thing-with-the-ruined-king

Took the time to write an in-depth explanation yesterday. Unfortunately lacks a TL;DR, so:

BotRK is difficult to balance because the purpose of the item, to counter HP stacking for auto-attackers, places differing (and clashing) demands on it, as that group of users is really diverse and generally includes two groups with different needs.