Karthus vs Rek'Sai JUNGLE Matchup Guide | LaneStomp

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Champion

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Karthus

VS

Jungle

Rek'Sai

Karthus vs Rek'Sai

Updated Jun 4, 2026

Overview

Prioritize full clears and avoid early fights to reach your scaling power spikes safely.
Use your global (R) to influence fights after level 6 without needing to be physically present.
Respect Rek'Sai's early invade threat and avoid predictable low-health river entries to prevent tempo loss.

Jungle Plan

Focus on cycling camps efficiently to hit your first AP item spike before contesting objectives.
Contest Scuttle only when your lanes have priority and Rek'Sai's early pressure is accounted for.
Counter-gank Rek'Sai's early tunnel ganks by tracking her pathing and positioning near vulnerable lanes.

Danger windows

Rek'Sai's early invade and level 3 gank window is dangerous; avoid low-health clears near river without vision.
Isolated river fights before your first reset risk losing tempo; only contest with lane priority.
Forced smite fights on early objectives can be risky; prioritize vision to avoid losing these engagements.

Early game

Start with a full clear path toward safe camps to maximize clear speed and item timing.
Avoid early river fights unless nearby lanes have priority to support counter-ganks.
Use wards to track Rek'Sai's first clear and ping lanes to prepare for potential invades or ganks.

Power spikes

Level 6 (R) unlocks global damage; use it to finish low-health enemies after skirmishes.
First AP item significantly boosts clear speed and objective damage; use this tempo to secure dragons and Rift Herald.
Rek'Sai's early level 3 power spike requires you to avoid early isolated fights and focus on safe farming.

Win conditions

Convert your superior clear speed and scaling into early objective control by arriving first with vision.
Use (R) after fights start or enemies drop low to secure kills and snowball advantages.
Punish Rek'Sai's extended fights in objective areas by stacking (Q) and (E) damage to deny her tempo and scaling.