Rek'Sai must leverage her superior early game pressure and fast clear speed to invade and disrupt Nocturne before he hits level 6.
Focus on creating early tempo advantages through aggressive three-camp clears into invades or counter-invades to deny Nocturne's scaling and objective control.
Jungle Plan
Execute aggressive early invades before Nocturne reaches level 6 to deny his scaling and force him off camps.
Contest first Scuttle Crab when your lanes have priority to secure vision and control around dragon and Rift Herald.
Track Nocturne's pathing closely to anticipate his level 6 cross-map ganks and be ready to counter-gank or collapse with multiple lanes.
Danger windows
Avoid fighting Nocturne alone in river or jungle after he hits level 6 and activates his ultimate (R), as he can create cross-map picks.
Be cautious contesting objectives or Scuttle without lane priority, as Nocturne's fear (E) and spell shield (W) make him strong in isolated skirmishes.
Rek'Sai is vulnerable during low-health clears or forced smite fights; use tunnels to disengage or call for lane assistance.
Early game
Start with a three-camp clear to reach level 3 quickly, then look to invade or counter-invade before Nocturne completes his full clear.
Prioritize early Scuttle control only when nearby lanes have priority to avoid risky isolated fights.
Use tunnels to maintain river control and set up counter-ganks against Nocturne's level 6 ultimate gank attempts.
Power spikes
Rek'Sai's level 3 power spike with access to her knockup (W) and tunnel mobility allows for strong early ganks and invades; capitalize immediately.
Nocturne's level 6 spike with his ultimate (R) creates high pick threat; respect his cross-map pressure and avoid isolated river fights post-6.
Rek'Sai's early tunnel and knockup combo enables her to punish Nocturne's spell shield (W) cooldown windows for successful engages.
Win conditions
Use Rek'Sai's superior early clear speed and tunnel mobility to invade and deny Nocturne camps before he reaches level 6.
Convert early tempo leads into dragon and Rift Herald control by coordinating with priority lanes and vision around river.
Exploit Nocturne's reliance on ultimate for gank threat by counter-ganking and punishing his cooldowns to maintain jungle dominance and snowball lanes.
Tip: For Rek'Sai vs Nocturne, read overview, trading pattern, and danger windows first for a fast Jungle lane check.