Trundle's strength lies in extended fights and objective control, so focus on securing river control and forcing fights near objectives.
Prioritize invading or contesting camps against Fizz early, as Trundle's dueling power and invade resistance outmatch Fizz's lower jungle pressure.
Manage vision around Scuttle and dragon to leverage Trundle's superior objective control and punish Fizz's lower sustain in prolonged fights.
Jungle Plan
Full clear efficiently to reach level 3 quickly and contest Scuttle when your lanes can support.
Invade Fizz early when you track his path and see him on opposite side, focusing on camps that deny his farm and force him into risky fights.
Use (E) to cut off Fizz's escape during ganks or counter-ganks, especially near dragon or Herald, and prioritize fights when nearby lanes have priority to secure objectives.
Danger windows
Be cautious contesting river or Scuttle before level 3 when Fizz can burst or dodge your engage with (E).
Avoid isolated fights if your health is low after clears, as Fizz's burst and mobility can punish overextensions.
Watch for Fizz's level 6 (R) window when he can all-in or roam; hold key defensive tools and vision to counter his pick attempts.
Early game
Start with a path that leads toward the first river Scuttle to contest it when nearby lanes have priority.
Avoid early fights before level 3 if Fizz shows aggressive pathing, but look to counter-invade once (R) is available for dueling tanks or bruisers.
Use (E) pillar to trap Fizz in narrow jungle corridors during counter-jungling or river skirmishes to capitalize on his lower escape options.
Power spikes
Level 6 (R) significantly boosts Trundle's dueling by stealing resistances from tanks, so target durable enemy champions to win extended fights.
First major dueling item completion enhances Trundle's ability to pressure side lanes and force tower trades after winning skirmishes.
Respect Fizz's level 3 power spike where he gains his engage and dodge combo; avoid early fights before your (R) and item power spikes are ready.
Win conditions
Convert early river and Scuttle control into dragon and Rift Herald setups to snowball your team advantage.
Use your strong dueling and (R) stat drain to deny Fizz farm and jungle access, forcing him into unfavorable fights.
Leverage your (E) pillar and (W) domain to trap enemies and create kill opportunities, then pressure side lanes to secure objectives and split-push effectively.
Tip: For Trundle vs Fizz, read overview, trading pattern, and danger windows first for a fast Jungle lane check.