Trundle's early game strength and dueling power let him contest Zac's slower clears and invade safely when lanes have priority.
Focus on controlling river Scuttles and using (E) to trap Zac near objectives where his mobility is less effective.
This matchup favors Trundle's ability to stat-check tanks and deny Zac's scaling frontline impact through early pressure.
Jungle Plan
Prioritize invading Zac's jungle early to deny his slower first clears and force him off camps before level 6.
Fight for river control and Scuttle when your lanes have priority to set up early objectives like dragon or Rift Herald.
Use (E) to block Zac's escape routes during counter-jungling or objective fights, and look to counter-gank when Zac commits to ganks with his long-range engage.
Danger windows
Zac's early levels before level 6 pose a threat if you overextend without vision due to his high mobility and long-range engage (E).
Isolated river fights without lane priority are risky since Zac can gank from unexpected angles.
Be cautious around forced smite fights early as Zac's engage and disruption can turn fights if you are low health or outnumbered.
Early game
Start pathing toward the first river Scuttle to contest it when nearby lanes can move first.
Avoid fighting Zac in isolated river fights early unless you have level and vision advantage due to his strong gank angles.
Use your steady clear speed to maintain tempo and look for counter-invades after tracking Zac's pathing away from early camps.
Power spikes
Level 6 is a major spike; use (R) on Zac or his frontline allies to steal resistances and dominate duels.
First dueling item completion increases your ability to force extended fights and apply pressure on isolated targets.
Side-lane pressure after your first item can force Zac into unfavorable teamfights where you can exploit your dueling and splitpush strengths.
Win conditions
Convert early jungle tempo and superior dueling into controlling dragon and Rift Herald vision to secure objectives.
Use (E) and (R) to trap Zac and his frontline, denying his engage and frontline durability in teamfights.
Leverage side-lane pressure after first item to force Zac into reactive plays, allowing your team to capitalize on objective control and scaling denial.
Tip: For Trundle vs Zac, read overview, trading pattern, and danger windows first for a fast Jungle lane check.
