I don't deny that the way crit functions could use an update...

...but Marksman are finally becoming more diverse.

Current Build Paths: Muramana TriForce (Ezreal) Muramana CDR (Varus & Jayce) IE TriForce (Standard TriForce ADC) IE PD/Shiv (Standard ADC) BT BotRK Shiv/PD/Runaan's (Kalista & Vayne) BT LW BotRK Youmuu's TriForce BotRK

If anything, its the Champions themselves that need to be altered. There's so many options, but not much decision making. 75% of AD Carries use the same two builds game after game and anything else is niche.

The thing is that crit is so fundamental in ADC itemization that everything has crit needlessly bundled into it. I mean, that's what the whole issue with BotRK Yoummu's Twitch/Lucian was. You could get Youmuu's to get a huge spike to your mid-game, but then it was still a decent crit and attack speed item in the later stages of the game.

Note: 'Current' really just refers to build paths that have been common in the last 12 months.