Fizz's spells scale off Ability Power - consider getting items like Zhonya's Hourglass or Banshee's Veil against teams that have high burst threat - and items like Lich Bane or Rabadon's Deathcap if you think you can survive without the Health.
Since Fizz can move through units, find opportunities in lane to walk through minions and apply Seastone Trident's passive - following it up with the ability's active attack after a few seconds.
Fizz's ultimate ability, Chum the Waters, can be aimed at an enemy or towards the area where you think they'll be going.
Katarina's abilities deal magic damage, so even if she's building Attack Damage items, get magic resistance to counter her.
Try to save a disable for when Katarina uses her Death Lotus.
The stats shown here underscore some vital Fizz versus Katarina counter stats that can help us interpret the differences between this pair of champions. Fizz’s KDA ratio ([kills + assists] / deaths) of NaN is more than Katarina’s ratio of NaN, indicating that Fizz may be more central to his team's team fighting potential than Katarina..
Fizz usually has a similar longest killing spree as his matchup does. Typically, he takes less damage than Katarina. This commonly reflects different amounts of tankyness, yet it can also hint that the one champ has less mobility and thus is unable to kite away from further harm when poked or engaged.
Both League champions are great champions. Both have their pros and cons. In the game's current meta, Fizz usually wins when trying to fight Katarina, with a 55.4% win rate. As a result, Fizz makes a fantastic counter for Katarina.
While Fizz does have a much higher winrate than Katarina, when on opposite teams, Fizz also has a lower learning curve that makes him a less challenging champion to learn and master. You don't need to be too worried when picking Fizz into Katarina.
Moreover, Fizz also has only a small amount of utility and CC, a similar amount to Katarina. This often makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there isn't one best champion for every situation in League of Legends, in Fizz vs Katarina matchups, Fizz is the better champ with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your allied champions during teamfights.
Fizz is a great counter to Katarina. You will do well by focussing your play on keeping up your gold and cs and clearing objectives. If you can do that, you should do very well as Fizz against Katarina.
To truly master Fizz in order to counter Katarina during both the early game and mid / late game phases of League of Legends, you should continue reading to gather a few extra tips and tricks for this matchup. If you pay attention to the build and suggestions presented here, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Fizz usually gets a similar amount of CS compared to Katarina. Champions who on average don't take many minion kills typically don't require much CS to be effective, such as sup champs. They are capable of scaling properly off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, typically have to have many items to be effective. In either situation, try to do better than the numbers shown here to do well.
The best items to use in your Fizz versus Katarina build include Rabadon's Deathcap, Shadowflame, and Stormsurge. When Fizz included at least these three pieces in his build, he did a lot better vs Katarina than with many other common item sets. In fact, Fizz had an average win rate of 55.4% when countering Katarina with this counter build.
To have the best probability of defeating Katarina as Fizz, you should equip the Electrocute, Sudden Impact, Eyeball Collection, Ingenious Hunter, Manaflow Band, and Transcendence runes from the Domination and Sorcery rune sets. Of all the rune sets that we analyzed for Fizz vs Katarina battles, this sequence of runes resulted in the greatest win rate. Notably, these runes averaged a 55.4% winrate overall.
If you would like to get Fizz versus Katarina tips and counter builds for a a specific division rank, feel free to choose one from the selection menu above. At first, the stats and guides given are computed using all matches played with both champs.