Prioritize full clears to leverage Karthus's fast clear speed and avoid early fights where Xin Zhao's dueling power is high.
Focus on tracking Xin Zhao's position to avoid early invades and river skirmishes that favor his strong level 3.
Use Karthus's superior scaling and global (R) to influence fights after reaching key item and level spikes.
Jungle Plan
Prioritize efficient full clears and reset tempo to reach item spikes before engaging Xin Zhao.
Contest Scuttle only when lane priority allows safe river control to prevent Xin Zhao from snowballing early objectives.
Use cross-map camp trades and avoid direct river fights unless strong lane follow-up or vision control is established.
Danger windows
Early invade windows around level 3 when Xin Zhao has full kit and strong dueling potential; avoid isolated river fights then.
Low-health clears or forced smite fights where Xin Zhao can capitalize on Karthus's vulnerability and lack of mobility.
Objective setups where (R) can zone and deny ranged follow-up, increasing risk in contested fights.
Early game
Start with a full clear path that avoids early river entry to minimize risk of Xin Zhao's level 3 invade.
Avoid contesting the first Scuttle unless nearby lanes have priority and can assist in countering Xin Zhao's early aggression.
Use wards to track Xin Zhao's movements and prepare for counter-gank opportunities rather than forcing early fights.
Power spikes
At level 6, use (R) to impact fights globally and finish low-health enemies after Xin Zhao commits or overextends.
After first AP item, leverage faster clear speed and stronger damage to secure objectives and force Xin Zhao off camps.
Respect Xin Zhao's level 3 power spike; avoid extended fights when his (E) and (Q) are available to close distance and lock down targets.
Win conditions
Maintain uninterrupted full clears early to reach level 6 and first item spikes faster than Xin Zhao.
Use (R) to influence fights and secure kills after Xin Zhao commits or lanes are low, converting tempo into objectives.
Control vision around dragon and Rift Herald to avoid Xin Zhao's early dueling advantage and punish him when he overextends or invades without lane support.
Tip: For Karthus vs Xin Zhao, read overview, trading pattern, and danger windows first for a fast Jungle lane check.
