Use Lillia's very high clear speed to out-tempo Jarvan IV and secure early jungle control.
Prioritize fast full clears and avoid early river fights before movement speed stacks are active to reduce risk from Jarvan IV's strong level 2-3 ganks.
Jungle Plan
Path around lanes with CC or setup to maximize (E) sleep gank potential and avoid Jarvan IV's strongest gank angles.
Use superior clear speed to reset tempo and contest dragon and Rift Herald entrances before Jarvan IV can set up.
Track Jarvan IV's early pathing and be ready to counter-gank when his engage combo is down or used elsewhere.
Danger windows
High danger at Jarvan IV's level 2-3 when (E)+(Q) is ready and lanes are overextended or lack flash.
Isolated river fights are risky before Lillia has movement speed stacks or sleep cooldowns available.
Forced smite fights near objectives post-level 6 are dangerous due to Jarvan IV's terrain trap (R) and engage potential.
Early game
Start with a full clear to hit level 4 quickly and avoid early Jarvan IV gank pressure.
Contest first Scuttle only if nearby lanes have priority and can follow up on Jarvan IV's engage attempts.
Avoid extended fights early if (E)+(Q) engage combo is available and lanes lack flash.
Power spikes
Respect Jarvan IV's level 2-3 spike when (E)+(Q) engage is available; avoid isolated river fights during this window.
Use Lillia's fast clear and movement speed power spike to invade or contest objectives before Jarvan IV scales.
At level 6, (R) lockdown increases gank threat; use vision and positioning to avoid getting trapped.
Win conditions
Convert faster clears into early dragon and Rift Herald control by arriving first and using sleep setup to secure objectives.
Use (E) and (R) sleep engage to initiate teamfights or force Jarvan IV out of smite range during objective contests.
Deny Jarvan IV free farm by invading when his engage combo is down and use superior mobility to avoid his ganks.
Tip: For Lillia vs Jarvan IV, read overview, trading pattern, and danger windows first for a fast Jungle lane check.