Warwick's early dueling and sustain let him pressure Master Yi's slower early clear and contest river control.
This matchup revolves around denying Master Yi free farm and forcing fights before he hits his item spikes.
Jungle Plan
Prioritize invading or counter-invading Master Yi before he completes his first item to disrupt his farming tempo.
Contest early Scuttle crab aggressively when your lanes can assist to secure river vision and objective control.
Use early dueling strength to force Master Yi off camps and set up dragon or Rift Herald with lane priority before he scales.
Danger windows
Avoid early isolated fights without lane support, as Master Yi's resets with (R) and untargetability with (Q) can turn skirmishes.
Be cautious when (R) is active and your key crowd control is on cooldown, especially near objectives.
Low-health clears without (E) fear available increase your vulnerability to Master Yi's burst and chase potential.
Early game
Start on your stronger side to secure a healthy first clear and look for early Scuttle crab contests when nearby lanes have priority.
Use (W) to track Master Yi's position and punish him if he overextends or attempts unsafe full clears.
Avoid fighting Master Yi in isolated river skirmishes without lane priority or vision, as he can reset with (R) if CC is used poorly.
Power spikes
Level 3 unlocks your full kit, enabling strong extended fights with (Q) healing and (E) fear to punish Master Yi's weaker early dueling.
Level 6 (R) lets you suppress and lock down Master Yi from range, forcing picks or all-ins before he can reset.
Master Yi's first item spike increases his damage and objective speed; maintain jungle tempo to contest before this point.
Win conditions
Use your superior early dueling and sustain to deny Master Yi camps and force him into risky farming paths.
Secure early Scuttle crabs and dragon control with lane priority to limit Master Yi's scaling opportunities.
Convert successful ganks and picks using (R) suppression into objective control and snowball your lead before Master Yi reaches his carry power spikes.
Tip: For Warwick vs Master Yi, read overview, trading pattern, and danger windows first for a fast Jungle lane check.