Ninja Tabi - good for speed and it gives a 12% dodge which helps Jax's dodge ability (+25 Armor), (+12% Dodge) & (Enhanced Movement 2)

Rageblade - Gives a triple bonus due to Jax's passive ability (+35 Attack Damage),(+45 Ability Power) & (185 health points). This also stacks up to 8 times all in all a great item for Jax's

Mejai's Soulstealer - I like this item as it stacks the more kills you get, in a way it helps motivate me to kill.(+20 Ability Power) & (+40 health points)

Sunfire Cape - personally I was undecided about this item, but it works for me not only does it give a nice boost to your health and armour but it has a handy attack. Seeing as Jax can dodge alot of attack, he can remain in combat for a long him, this helps to kill of heros & minons (+450 health points)), (+45 Armor) & (Deals 40 Magic Damage a second to nearby enemies.)

Tiamat - This item is great it gives a splash damage, when combined with Jax's abilities it works well with Empower and Counter Strike. (+50 Attack Damage), (+15 HP Regen/5 sec.), (+5 Mana Regen/per 5 sec.), (+150 health points) & (Your attacks splash, dealing physical damage in a small area around the target(50% for melee, 35% for ranged).)

The Bloodthirster - This not only gives a boast to health, and damage but gives Jax a handy life steal when this is stacked up he is just about unkillable(+60 Attack Damage), (+15% Life Steal), (+180 health points) & (Gain an additional 1 Physical Damage and 0.25% Life Steal per kill. Maximum of +40 Damage and +10% Lifesteal. Bonuses are lost upon death. )