Vi's high early pressure and strong dueling let her contest camps and force Kayn off orbs before his form transformation.
Prioritize early river control and scuttle fights to deny Kayn safe form progress and limit his mid-game power spike.
Use lockdown (Q) and (R) to create picks around objectives, snowballing leads before Kayn scales into his assassin or bruiser form.
Jungle Plan
Full clear or three-camp path depending on lane flash cooldowns, then look to invade Kayn's jungle when he is delayed or pathing predictably.
Contest river vision and Scuttle Crab when nearby lanes can pressure, using (Q) to initiate and (R) to secure picks pre-objective.
Track Kayn's form progress and avoid fighting him post-transformation unless you have lane priority or numbers advantage; prioritize dragon and Herald control through picks.
Danger windows
Early invade attempts without lane priority or (Q) available risk losing skirmishes and giving Kayn tempo.
Isolated river fights post-Kayn's transformation become dangerous due to his wall mobility and knockup.
Forced smite fights around dragon or Herald without vision or lane priority can be lost if Kayn uses terrain to flank or disengage.
Early game
Start with a three-camp clear focused on lanes with flash down to maximize early gank threat and pressure Kayn's pathing.
Fight for first Scuttle Crab aggressively if nearby lanes have priority to deny Kayn vision and form progress.
Avoid extended early fights without lane priority or (Q) ready, as missing (Q) or lane collapses increase risk against Kayn's mobility.
Power spikes
Level 6 spike: Vi's (R) lockdown allows guaranteed picks and objective control before Kayn completes his form.
First completed jungle item: Vi's dueling and objective damage increase, enabling stronger invades and dragon fights.
Kayn's form transformation: Respect his enhanced mobility and damage, avoid isolated fights without lane support or vision control.
Win conditions
Use early ganks with (Q) and (R) lockdown to force Kayn off camps and deny form progress.
Control river vision and contest Scuttle Crabs to limit Kayn's safe pathing and secure dragon and Herald objectives.
Convert picks into objective leads before Kayn scales, leveraging Vi's strong early dueling and objective damage to snowball team advantage.
Tip: For Vi vs Kayn, read overview, trading pattern, and danger windows first for a fast Jungle lane check.
