Fiora aims to pressure Vayne by punishing her fragile early melee range and forcing isolated side-lane duels where vitals are accessible.
Manage the lane to avoid giving Vayne free ranged poke and kite space, as Fiora needs medium lane pressure to deny Vayne's scaling and ranged harassment.
This is a splitpush versus scaling marksman matchup where Fiora must leverage her dueling power and vital procs to outscale and isolate Vayne.
Trading pattern
Take short trades by hitting accessible vitals with (Q) and back off before Vayne can retaliate with autos or (W) true damage.
Save (W) to parry (E) crowd control or burst damage for safer engage windows.
Avoid forcing trades when vitals are hard to reach or (W) is down, and extend trades only when (R) is active or after your first dueling item.
Danger windows
Be cautious when (W) is on cooldown as Vayne can punish predictable engages or crowd control attempts.
Respect (E) wall stun threat, especially near terrain where she can lock you down.
Vayne's level 6 (R) stealth repositioning creates danger windows where she can dodge your engage and counterattack; avoid committing without (W).
Early game
Use early levels to probe for vital procs with (Q) and avoid extended trades before your first item spike.
Hold (W) to parry (E) or burst attempts rather than using it prematurely.
Maintain medium lane pressure without pushing too hard to avoid being kited or punished by ganks.
Power spikes
Level 6 (R) unlocks Fiora's full dueling potential by revealing vitals and providing healing; use (R) to force extended fights where you can chase and proc multiple vitals.
First dueling item spike increases damage and sustain; pressure side lanes to force Vayne into isolated duels.
Respect Vayne's level 6 (R) stealth repositioning and (Q) stealth for outplay potential; avoid extended fights when her (R) is active without your (W) ready.
Win conditions
Win isolated side-lane duels by proccing vitals with (Q) and saving (W) to negate Vayne's key crowd control or burst.
Use (R) to extend fights and chase Vayne through multiple vital procs, denying her safe kite space.
Apply splitpush pressure after your first item to force Vayne to respond, creating favorable side-lane scenarios and limiting her scaling impact.
Tip: For Fiora vs Vayne, read overview, trading pattern, and danger windows first for a fast Top lane check.
