Jax

Strengths

Jax can Leap Strike to friendly units, including wards. You can use them to plan your escape.
Jax benefits greatly from items that have both Ability Power and Attack Damage such as Guinsoo's Rageblade and Hextech Gunblade.

Passive · Relentless Assault — Jax's consecutive basic attacks continuously increase his Attack Speed.
Q · Leap Strike — Jax leaps toward a unit. If they are an enemy, he strikes them with his weapon.
W · Empower — Jax charges his weapon with energy, causing his next attack to deal additional damage.
E · Counter Strike — Jax's combat prowess allows him to dodge all incoming attacks for a short duration and then quickly counterattack, stunning all surrounding enemies.
Ultimate · Grandmaster-at-Arms — Every third consecutive attack deals additional Magic Damage. Additionally, Jax can activate this ability to deal damage around himself and strengthen his resolve, increasing his Armor and Magic Resist for a short duration.

A suggested 5-lane lineup built around Jax, based on hero partnerships and role synergy — not win rate.