Jarvan IV must leverage his strong early gank pressure and engage tools to create lane leads before Rek'Sai can snowball with her early invade and gank threat.
Prioritize controlling river vision and contesting early Scuttle Crabs to limit Rek'Sai's tunnel mobility and map tempo.
Jungle Plan
Path toward lanes with crowd control or immobile carries to maximize (E)+(Q) gank success and force Rek'Sai onto the back foot.
Use early gank tempo to secure first dragon or Rift Herald instead of full farming clears, denying Rek'Sai scaling and objective control.
Track Rek'Sai's pathing and be ready to counter-gank or trap her with (R) in objective pits to deny smite fights and secure numbers advantage.
Danger windows
Rek'Sai's early invade timing and tunnel ganks create high risk around level 3; avoid fighting without vision or lane priority.
Isolated river fights near Scuttle or objectives are dangerous when Rek'Sai can use tunnels for surprise angles and (W) knockup.
Jarvan IV is vulnerable when (E)+(Q) is down, losing engage and escape options; avoid extended duels or invades during this cooldown.
Early game
Start with a full clear or three-camp clear aimed at reaching level 3 quickly to enable early (E)+(Q) ganks on overextended lanes.
Fight for first Scuttle only when nearby lanes have priority to support a contest against Rek'Sai's fast clear and tunnel control.
Avoid extended early duels without (E)+(Q) available, as Rek'Sai's mobility and knockup can punish Jarvan's engage cooldown downtime.
Power spikes
At level 2-3, (E)+(Q) combo unlocks strong gank pressure; use it to force early flashes and repeat gank vulnerable lanes.
At level 6, (R) provides lockdown to trap Rek'Sai or immobile targets, enabling secure objectives or dives; capitalize on this to convert leads.
Respect Rek'Sai's early power spike from fast clears and tunnel ganks by avoiding isolated fights without lane support.
Win conditions
Convert early gank pressure into lane leads by forcing Rek'Sai's lanes to burn summoners or fall behind.
Use (R) to trap Rek'Sai in objective pits, securing dragons and Rift Heralds through superior engage and frontline presence.
Deny Rek'Sai free farm and jungle tempo by counter-jungling camps when lanes have priority, preventing her snowball and scaling.
Tip: For Jarvan IV vs Rek'Sai, read overview, trading pattern, and danger windows first for a fast Jungle lane check.
