Jak'Sho, The Protean

Stats

Values as the League of Legends Wiki's item data lists them, for every mode; the data doesn't state their units.

Effects

• Voidborn Resilience (unique): Gain a stack for each second in combat with enemy champions, stacking up to 5 times. At maximum stacks, increase your bonus armor and bonus magic resistance by 30% until the end of combat.³

Arena changes

• Health changed to 350.
• Armor changed to 35.
• Magic resistance changed to 35.
• Voidborn Resilience bonus resistances changed to 40%.⁴

Jak'Sho is a good last item most of the time.⁵

Braum's W resistance scaling can keep increasing when he has enough haste to recast it and percentage resistance items such as Jak'Sho.⁶⁷⁸

Earlier formats

In patch 13.14, Jak'Sho stopped gaining Voidborn Resilience stacks while its owner was dead.⁹ 4x2 duos

• Braum could stack W's resistances with Dashing or Bread and Jam, enough haste, and an item that increased armor and magic resistance by a percentage, such as Jak'Sho.¹⁰ 8x2 duos