ADC build paths
I see many people on the boards wondering what to get on ADC's, and many people in game, who obviously don't know what to build. This post is meant to help with that.
First off, there are three "classes" of ADC's:
The "caster" class. this class includes champs such as:
this class focuses on mostly using their abilities, with a few autos thrown in for the
procs. A typical build path for a "caster" ADC, looks something like this:

2
the "Auto" class. This class includes champs such as:
This class uses mostly autos to get their damage down, and usually have some kind of stacking proc(i.e.
Rend,
Silver Bolts, etc) A normal build for this class is this:

3
the "Traditional" class. This class includes champs like:
(And basically every other adc in the game)
By far the largest class, the "Traditional" class uses a mix of abilities and autos to do damage. A typical build path could be:

When deciding what to build, first determine what class does your champion fall into. Once you've done that, look at your opponents team comp. Say your champ is a "Traditional". If they have all squishy champs, then maybe you should get
third instead of
. If they have a long range poke champ, like
, maybe you should get a
as your defensive item. Always remember, your build is flexible. Never stick to the same six items in the same order without paying attention to your enemies and your team. And this isn't just to ADC's, every champion has a flexible build path. Don't stick to that one cookie cutter build.
I hope this has helped you out! Feel free to reply or message me if you have questions about a particular champion.
or
/
situationally (Very rarely)
- Mid-game centric build
To replace boots if mobility difference doesn't matter.
, because it works well with her aoe damage. But even on Sivir, you can still choose
to get
And potentially
. Though it's more of a luxury item for his tank build(s).
Or adcs that can deal massive damage with one skill that procs on aa for a on hit effect like
,Statik can also be optional on like ezreal as an example or cait if you can get your passive proc with it, it just people's playstyle, also statik can really be effective if they are stacking armor early so at least you are dealing magic damage. For

or 
, because of his high magic damage. And
is without a doubt the only item you need on ant adc in the game