This is a quick build that I have had success with in terms of kills and assists. Everyone always tanks Jarvan instead of using his health to supplement and attacking mentality. This is my first attempt at a build so I apologize if it does not work for you leave your feedback and let me know the problems you encounter as you play. Understand that your play style is most likely different from mine and this may cause some problems, but I'm just here to give you a general idea.

The masteries build that I use is to focus on attack and traveling around the map as fast as possible. The teleport is specified for the 5v5 map and can be replaced with exhaust or heal in a 3v3 game. They are also set up to give you that added boost when it comes to attacking and hit and runs

The biggest unique skill that Jarvan has is the Demacian Standard and Dragon Strike. Dragon strike when it contacts the Standard that is down it will bring Jarvan to it knocking all enemies in that path up in the air. This is helpful when chasing champions and can be combined with Golden Aegis to slow them down. This can also pull you through the cataclysm wall that is formed as well as through other small walls to help with escapability. It can also be used to run away from other champions as well.

The sequence of skills is not a huge factor in how to play this build however for early in the game I recommend Demacian Standard to keep enemy champions back and always in sight when laneing. Adding this to Dragon Strike gives you surprise and escapability if you happen to get ganked or just stuck alone. The shield helps for slowing enemy champions making for a sure kill but it is not really important early. One word of advice, if laneing with a squishy champion like Annie or Ashe be sure not to trap them with enemy champions as they cannot escape for cataclysm like Jarvan can using his Standard and Dragon Strike combo.

These spells are just suggestions but you can use your favorites to compliment the style of play you have. The spell that I recommend is Clarity even though Jarvan's skills don't seem to require much mana it does deplete rather quickly especially if you are constantly using the Standard/Dragon Strike combo. The other spell depends on your play style. I like to surprise and ambush so teleport helps with that but ignite and get you some early kills and heal along with clarity can keep you farming and in line for a long time.

The first item you get is the Berserker Greaves as they are early added attack speed and if you can farm or your lane is just beating that or your opponents it just adds the speed in which you gain gold and experience. Second is your choice but I recommend building toward the Phantom Dancer first as it adds a little to almost all attack stats minus damage. Next is Stark's Fervor this can be subbed out for the blood thirster if your laneing with someone who has Stark's as they don't stack. This takes longer but leaves you doing more damage in the long run. Last is Amata's Impaler this adds to critical hits as well as adds a good portion of attack damage making your attacks stronger and not giving the enemy a chance to kill you first. The last item you should get is the Black Cleaver as it adds more attack and attack speed making you even more deadly in a close combat situation.

1. Berserker Greaves
2. Phantom Dancer
3. Stark's Fervor
4. Amata's Impaler
5. Black Cleaver

This build works best when paired with a ranged champion like Kennen or even with a tank like Warwick. However you can lane alone and it is not as big of a struggle that it may seem with a melee champion being that you can use the Standard to keep enemies away.

Lets start with the Pros this makes Jarven almost an assassin character like Malphite meaning he can ambush from a distance as well as keep enemies from escaping or even keep enemies from group attacking by singling out an individual champion to attack.

Now the rough part. The biggest con with this build is that you are semi squishy through out the entire game. This is offset a a lot by the life gain but can still mean trouble if you run into another DPS build like that of a Master Yi.

I know there are other DPS builds but this is my take on a true DPS that would rival a fed Master Yi and I think we all can agree that that is nothing to be messed with. Thank you for trying this out and I would love to here your comments and any suggestions to changes that you would make.