Hi everyone.
6th guide, and this is because my friend has no clue what do build on Graves now, but i thought i might as well make it a full guide.

Ok so first a note about the items:
Your shotgun will fire 10 bullets that crit 100% of the time. Also the CDR means that you can E every 2 seconds between attacks. You wont need to back by the time you get Essence Reaver. This is here because it is a weird build but it works.

Graves in a short ranged all in ADC who is really good at farming and bursting people down. He also has AoE basic attacks.

Essentially, poke as much as possible while kiting with the E, while basic attacking and Q's bring them low.

If they initiate on you, kite with your E, and if they initiate on you specifically, W yourself, E back, Q them, basic attack while running and E whenver possible, and when they are low, Collateral Damage them to death (That's your ult)

Do the exact same thing but with more skill.

But remember, ward as much as you can with spare money (like if you have 150 left after buying), but also make sure to hang near the back of fights, because, generally, people can initiate in ranked.

Pros:
Loads of kite
Loads of burst
AoE basic attacks
Good in enclosed spaces
Not as squishy as other squishies
Cons:
Short range

This is actually hard, because now you knock minions and monsters back, so you might knock them out of your range, but in the range of caster minions, so practice last hitting in bots of something if you have a more passive supp (like soraka)

AoE basic attacks
I know this looks like thats the only thing, but its an awesome thing.

Have fun and petition Riot for Graves to have a cigar.