Jax rework W idea: Vertical Slash Skillshot (like yasuo)
imagine the following: jax as a samurai : https://www.mobafire.com/league-of-legends/skin/jax-temple-179
W: changed into a skillshot like yasuo Q but it increases his effective autoattack range by #Relentless Assault stacks. In fact... you can make this skill consume relentless assault stacks. At max stacks it would deal 300% ad damage and have twice yasuo Q max range.
E: Could scale in duration and power with #Relentless Assault stacks. The idea is, if a jax jumps on you when he is out of combat, it will be a crappy stun, therefore giving you enough counterplay to blow him up.
R: crappy statstick not needed. Give him an interactive skill.
Use as you want, public domain license.