Infinity Edge has a conflicted purpose.

My understanding is that is supposed to be what gives adc's their late game scaling, but because the item also has 80 AD (which is the most you can get on 1 item), it's also the optimal first item caster for adc's as well. This creates a rather strange scenario where the most stat reliant class in the game is getting their stats multiplier item first and it makes the adc role as a whole disproportionately snowbally since each subsequent item after IE is worth more due to it's multipliers. It also massively favors auto based adcs over casters since AD casters buy it largely for the AD while auto based adcs benefit far more from the items passive.

I feel like this divided purpose stems from the fact that IE is both the big ticket AD item and te scaling adc item at the same time. I know Riot is already reworking the Marksman role in the offseason but I can't help but feel that IE should be focused more on scaling and bought less because of it's AD. Perhaps a new recipe and cost: 3800 gold 50 AD 35% crit chance and keeping the current passive. Obviously PD and Shiv would need to be changed as well to not be so crit heavy themselves, but I honestly feel like they were too strong anyway since they're always paired with IE and they're relatively cheap items with strong build paths.