Not Updated For Current Season
Jax Is a amazing character if you know his limits. Not much practice is required to completely decimate the other team. Jax is a monster early game so don't be intimidated. Do not go mid as Jax though. I know I said he was a monster early game but, he can't hold up in it so don't try.
For Jax I normally use the W-Q-E combo. If I'm harassing W-Q is just fine. If I'm going for a kill, W-Q-R-E is the way to go. If I'm running to help someone get away or get away myself E is your absolute best friend.
Jax - Rules
6 Jax Rules to Always Follow
1. Spam Empower its very inexpensive in Mana
2. Always go in from the side, unless other circumstances are present
3. If your fighting a enemy champion Counter-Strike is your best friend
4. Never over-extend; you're too squishy
5. You are not a tank, but play a little aggressive
6. Yi is not better than you >:| !!!