Blade of the Ruined King adds current-Health on-hit damage, while Dusk and Dawn strengthens Jax's attack cycle with Spellblade and an additional on-hit trigger. Riftmaker increases damage and Omnivamp in extended duels; Zhonya's Hourglass is the sole active item and buys time after Counter Strike or Leap Strike. In the combo simulation, repeated attacks stack Lethal Tempo and make the follow-up attack sequence the most efficient.