User blog comment:Zeowolf0/Champion Appreciation Week - Prince Jarvan Lightshield the Fourth/@comment-4834593-20130121132924/@comment-76.93.211.214-20130123025154

A couple of tips:

Early game: build Brutalizer/Phage, Wriggle's if you're fed. Head into Trinity Force. The Trinity/Sheen proc stacks with the passive, making the E/Q/AA harass that much stronger. With the carry/bruiser path (see below), trinity allows Jarvan to have a surprising amount of burst damage.

Mid/Late game: This depends on if your team needs tankiness or more damage. I like to build Warmogs>Randuin's Omen> Mercurial Scimitar for tankiness; Bloodthirster>Last Whisper/Black Cleaver>Warmogs/Mercurial Scimitar/Randuin's for a more AD Carry/bruiser mode. Frozen Mallet is also a good choice no matter what path you take.