Hi this is my build for Jarvan I just made this build and I hope you guys like it.
Well if you are going against a high damage output team you might want to put some resistance into the build.
If you are going against a more tanky team then might as well go with this build it would take them down easily with no problem.
I will add more stuff to this build in the future. If you guys got any problems with the build please just tell me how I could improve it.
Well hope you guys like my first build that I posted on MobaFire :)

Pros:
High damage output
Solid champion
1v1 easily
Great at harassing
Ulti is great for trapping other champions
Great at late games
Cons:
Really squishy
Always targeted first
If you use your ulti wrong you could cost a kill or even make you or your teammate die

Go ahead and take ignite for well you know why just in case they run away with barely any hp and you do not want to lose the kill to some stupid heal.
The second one should be either ghost or flash.
But I choose to get ghost because it seems like it usually helps me out in more problems.
If you want both then you could switch ignite for flash so you would have flash and ghost and now you could get away from anyone yes yes even Master Yi

These items are more of a dps/ad build. I would recommend this build when you go against more of a tankish team.
If you are going against a damage depended team then you might want to go get some resistance.
The dps/ad build is a lot squishier but it puts out a lot of damage if you already have a different tank on your team besides you then that means you could put out A LOT of damage because most likely they would be focusing him. Well lets hope. Oh and one other thing if you get focused a lot please buy some more tankish stuff. My tanky/dps build will be coming soon.