As jax, Jax's first item component allows him to chase down enemies during an extended fight. It will let him stack up his Passive and completely decimate his enemies. Going for regular short burst trades will help him a lot.

Level 6 is a decent power spike as it will increase his survivability during fights. Once he gets more items, this ability will help him kill enemies with ease, and he can take over the game with his scaling.

Jax isn't very strong early on as he is quite item reliant. He should be focusing on farming and short skirmishes to clean up kills. Neutral objective fights are situations where he can capitalize on this objective. As jax, The first element of Jax allows him to chase the enemies during a prolonged fight. He will let him stack his passive and completely decimate his enemies. Going to regular trades of short burst will help him a lot. Level 6 is a decent peak of power because it will increase his survival during the fights. Once he will have more elements, this ability will help him kill the enemies with ease, and he will be able to resume the game with his scaling. Jax is not very early because he is dependent enough on the article. He should focus on agriculture and short skirmishes to clean up the murders.