User blog comment:Megames1/Against the Meta INVINCIBLE! Plus More!/@comment-5266525-20121004101615

If I could live forever... I'd stick with picking carries all day. Or Darius.

AD champions do not entirely consist of just carries and AD casters. The biggest group of champions in the game are AD and they are the bruisers. And that's why it's hard to make an AD caster item - the very concept of it is flawed. Anything they benefit from, bruisers will benefit from as well. Perhaps not as much, but with bruisers being the borderline overpowered champions that they are, they don't need this kind of buff and it won't help make AD casters any more effective.

There's also the issue that creating an item for the sole purpose of making a class of champions able to scale into lategame pretty much means you are dictating that every AD caster MUST take this item or fall off. It's not quite the same thing as all carries grabbing Infinity Edge as that is THE premiere autoattack damage item (remember that the whole point of going carry is to go for absolute maximum damage) and many carries nowadays can delay it anyway for a Bloodthirster or Trinity Force and still do well.

And Fiora? Like an AD caster item, her concept is flawed. Melee carries in this game simply do not work because of the existence of Flash, disengages and the fact that they are the squishiest champs on the team yet have to put themselves in danger to do anything. On top of that their damage doesn't even exceed that of ranged carries to compensate. I believe Master Yi has the single highest DPS of any champ in the game at full build but he'll melt if somebody so much as breathes on him because he has no way to deal with hard CC.