What is the best Jinx build in Wild Rift?

Jinx's most reliable build is the one that protects the moment she becomes a true reset carry. Bloodthirster, Runaan's, and Infinity Edge remain the strongest base because they connect lane stability, DPS, and the first kill.

When should Jinx mainly buy the right to fire instead of pushing damage ceiling?

You should adapt when the first fight problem is enemy access onto Jinx, not her DPS. If dive cuts her off before the reset, if poke stops her from arriving healthy, or if the frontline drags out the first kill, you need to move up safety or anti-frontline.

Which enchant should Jinx choose when the goal is mainly reaching the first reset without leaving the fight?

Quicksilver often remains the most reliable choice when crowd control or dive mainly threaten the moment of the first reset. If this enchant lets her stay in the fight just long enough to secure the first kill, it gives more value than a more aggressive option.

Jinx Wild Rift Best Build Guide (Patch 7.2a)

Jinx’s default build works because it respects her true win condition: surviving long enough for her sustained damage to exceed the enemy’s ability to contain her.