P / Nimble Fighter
Fizz can move through units and takes a flat amount of reduced damage from all sources

the Nine-Tailed Fox
Innately connected to the magic of the spirit realm, Ahri is a fox-like vastaya who can manipulate her prey's emotions and consume their essence—receiving flashes of their memory and insight from each soul she consumes. Once a powerful yet wayward...
DoPreserve space while his evasive spell is ready and look for the control window after he uses it.
AvoidDo not commit your full rotation into an available untargetable response.
Fizz can move through units and takes a flat amount of reduced damage from all sources
Fizz dashes through his target, dealing magic damage and applying on hit effects.
Fizz's attacks bleed his enemies, dealing magic damage over several seconds. Fizz can empower his next attack to deal bonus damage and empower his further attacks for a short time.
Fizz hops into the air, landing gracefully upon his spear and becoming untargetable. From this position, Fizz can either slam the ground or choose to jump again before smashing back down.
Fizz tosses a fish in a direction that attaches to any champion that touches it, slowing the target. After a short delay, a shark erupts from the ground, knocking up the target and knocking any nearby enemies aside. All enemies hit are dealt magic damage and slowed.
Use ranged access without standing close enough to offer an easy targeted dash. Keep Charm available when Fizz can still enter rather than spending it just to add poke.
Wait for Playful / Trickster to finish before committing a targeted catch. Do not spend the full rotation while he is untargetable; his landing and your exit route decide whether the trade can continue.
If the fish attaches, move away from teammates before the delayed area hit where possible. Keep a Spirit Rush direction that creates separation instead of bringing the follow-up into your backline.
Optional changes for this matchup.
A spell shield is an option when you can preserve it for the important spell. Incidental damage can remove that protection, so keep checking its state before approaching.
Unrated matchup notes. Inspect sources
Ability references are available for every opponent. Matchup advice covers 10 pairings; the rest are unrated.