Use your passive fear to control Naafiri's dashes and pressure her early to deny safe (Q) poke and prevent (W) engages.
Maintain lane pressure to avoid giving Naafiri a calm scaling lane, as this matchup favors Vex's anti-dash burst control over Naafiri's poke and all-in.
Trading pattern
Use your passive fear to open trades and proc electrocute quickly before Naafiri can respond.
Punish (W) commits by applying (E) slow and activating (W) shield to survive her burst.
Avoid extended trades if your fear is baited or missed, as you become vulnerable without (R) resets.
Danger windows
Respect (Q) poke combined with (W) ready to engage, especially when your health is low.
Avoid fighting when (R) is active and you are isolated, as her pack greatly increases her burst and chase potential.
Be cautious if your passive fear is down or baited, as Naafiri can safely all-in during this window.
Early game
Use your passive fear to interrupt (Q) poke and punish her when she commits (W).
Avoid all-in windows when (Q) poke is up and her (W) is ready to engage.
Maintain lane pressure to keep Naafiri from safely poking or isolating you for (R)-enhanced all-ins.
Power spikes
At level 6, use (R) to engage or reset fights, punishing Naafiri's committed (W) engages and isolated targets.
After your first completed AP burst item, pressure trades and wave control confidently to outburst Naafiri's poke.
Respect Naafiri's level 6 (R) which enhances her chase and all-in potential; hold key defensive tools and avoid overextending during this window.
Win conditions
Use your passive fear to control Naafiri's dashes and win short trades.
Punish (W) commits with your (E) slow and (R) resets to burst her down.
Maintain lane pressure early to prevent Naafiri from safely poking and snowballing with (R) all-ins.
Tip: For Vex vs Naafiri, read overview, trading pattern, and danger windows first for a fast Mid lane check.