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.
Try to stay away from walls. Ornn is much less strong if he cannot stun you.
Attack Ornn to keep him from creating items in lane.
The stats provided here emphasize several important Fizz vs. Ornn matchup stats that can help you realize the differences and similarities between the pair. Fizz’s KDA ratio ([kills + assists] / deaths) of NaN is better than Ornn’s ratio of NaN, demonstrating that Fizz may be more central to his team's team fighting capability than Ornn. This observation is in large part a result of the difference in kills.
Fizz typically has a much larger longest kill spree than his enemy does. On average, he receives less damage than Ornn. This often reflects different amounts of tankyness; however, it can also illustrate that the one champ has less mobility and thus is unable to kite away from further harm when engaged or poked.
Both LoL champions are great champions. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Fizz usually wins when trying to fight Ornn, with a 52.7% win rate. Therefore, Fizz makes a good counter for Ornn.
While Fizz does have a higher win rate compared to Ornn, when on opposite teams, Fizz also has a greater learning curve that makes him a more difficult character to develop with. You should be be fine when picking Fizz into Ornn.
Furthermore, Fizz also has only a small amount of CC and other utility, a similar amount to Ornn. This often makes her just as valuable during teamfights, especially when trying to counter champions with a lot of burst damage.
While there is not one best champion overall in League of Legends, in Fizz vs Ornn matchups, Fizz is the better champ with a noticably higher win rate, more champion depth, and a similar amount of utility to help out your allies during team fights.
Fizz is a good counter to Ornn. Make sure you focus your strategy on increasing your gold and cs and clearing objectives. If you do that, you should be able to stand on your own as Fizz against Ornn.
To truly master Fizz to counter Ornn during both the early game and mid / late game phases of League of Legends, you should continue reading to pick up a few extra tips and tricks for this matchup. If you pay attention to the build and stats presented above, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Fizz typically gets a similar amount of CS compared to Ornn. Champions who typically don't earn much CS often don't require much CS to be effective, such as supports. These kinds of champions are capable of scaling properly off of their skills, stats, and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, usually require many items to be effective. In either case, try to do better than the numbers reported on this page to do well.
The most important items to prioritize in your Fizz versus Ornn build include Rabadon's Deathcap, Lich Bane, and Zhonya's Hourglass. When Fizz combined at least these three pieces in his build, he did significantly better when fighting Ornn than with many other common counter builds. In fact, Fizz boasted an average win rate of 52.7% when playing against Ornn with this counter build.
To have the greatest chance of crushing Ornn as Fizz, Fizz players should use the Electrocute, Sudden Impact, Eyeball Collection, Treasure Hunter, Coup de Grace, and Triumph runes from the Domination and Precision rune sets. Of all the rune sets players used for Fizz vs Ornn clashes, this blending of runes yielded the best win rate. Notably, these runes gave a 52.7% win rate overall.
If you would like to get Fizz x Ornn tips and counter builds for a a particular division rank, feel free to select one from the selection menu displayed above. If viewing for the first time, the statistics and build suggestions displayed are calculated using all matches run with these champs.