Prioritize full clears and item tempo over early fights to avoid Rengar's strong early invade and dueling power.
Avoid early river skirmishes unless your lanes have priority to support counter-ganks or objective fights.
This is a scale vs snowball matchup; focus on farming and reset chains to outcarry Rengar in late fights.
Jungle Plan
Prioritize safe camp sequencing and avoid early cross-map invades unless lanes can cover your exit.
Contest dragon and Rift Herald only after securing vision and when Rengar is visible or on opposite side of the map.
Use resets and cleanups after enemy CC is committed; avoid initiating fights where Rengar can root or leap from brush.
Danger windows
Early game river fights near brush are dangerous due to Rengar's empowered root and leap; avoid isolated skirmishes here.
Low-health clears or forced smite fights put you at risk of Rengar's invade and burst; only contest objectives with lane priority or vision control.
Rengar's ultimate stealth and pick threat create danger windows around dragon and Baron setups; play around vision and lane states to avoid getting caught.
Early game
Start with a full clear to reach your first item spike quickly and avoid early dueling with Rengar.
Only contest first Scuttle if your nearby lanes have priority to reduce risk of Rengar's invade or pick attempts.
Track Rengar's pathing and avoid river brush fights early where he excels with empowered abilities and brush control.
Power spikes
Level 6 (R) unlocks your chase and reset potential; enter fights only after Rengar's CC is used to maximize (Q) and (R) effectiveness.
First item spike increases your sustained damage and objective speed; maintain high camp tempo to reach this faster than Rengar.
Respect Rengar's early empowered ability management and brush control that grant him strong early dueling and pick threat.
Win conditions
Convert superior clear speed and item spikes into uncontested objective control and scaling advantage.
Use (Q) and (R) resets to clean up messy skirmishes after enemy CC is committed, denying Rengar's pick potential.
Maintain vision and track Rengar's location to avoid early invades and force him into unfavorable teamfights where you can carry.
Tip: For Master Yi vs Rengar, read overview, trading pattern, and danger windows first for a fast Jungle lane check.