Draven is an ego maniac, he is very full of himself and very fun and satisfying to play with. Every kill is rewarded with a roar of the crowd, he keeps commenting on how great he is and keeps mentioning his own name.

Precision

Press the Attack - This rune is awesome on draven since he thrives on all ins, this means he will take advantage of the extra damage it offers since he will be looking for fight where he can all in 100 to zero the enemy.

Triumph - This rune is op and I take it on every adc except very safe adc's like maybe caitlyn, who I still usually take it on, enough said.

Legend: Alacrity - I prefer to take this rune above LEGENDS: Bloodline because your trades are lengthy but not lengthy enough to take full advantage of this rune, atleast not in the early game, AS however can mean that one extra crucial auto in the early game.

Coup de Grace - As Draven you will often be able to poke the enemy to a very low amount of health, but not always get the kill because of the tower, this is where your ult and this rune works well together. It also gives extra damage after a takedown if you hit multiple targets.

Sorcery

Celerity - This rune, expecially after the new rework works great with draven, you will be able to run it down mid, I mean chase the enemy without worrying that they will get away now.

Gathering Storm - This rune is great on all adc's because it allows them to scale infinitely, keeping you in the game all game.

Bloodthirster - This item is essential on Draven, it allows
him to go all in like he often has to without worrying about
dying before he gets to pump out the damage

Stormrazor - If you are vs a squishy bot lane like Zyra and
Miss Fortune this item is ideal and I recommend you build it
first almost always.

Pros

He is strong all game long
He is very strong early and can dominate laning phase

Cons

The items he has to buy are very expensive, making him spike later vs champions like

Lucian.

Spinning Axe - This is the first ability you want to max since it reduces the mana cost to do maximum damage.

Blood Rush - This is the 2nd ability you want to max because it gives you great dueling power if you catch your axes, but the mana cost can become expensive.

Stand Aside - This is the last ability you want to max, because you will only use it once in duels or fights and also won't use it in lane.

Whirling Death - Default upgrade every chance you get.

The hardest part of any adc's job is to survive in a team fight, luckily you have lots of mobility with your w Blood Rush to kite. If you are going to have to choose between a risky situation and dropping the axe, drop the axe and wait for the ability to be up again. Do not greed to catch axes.