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 provided here feature some critical Vex against Katarina counter stats that may help you figure out the distinctions between these two champs. Vex’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Katarina’s ratio of NaN, demonstrating that Vex may be more central to their team's team fighting effectiveness than Katarina..
Vex usually has a slightly smaller longest killing spree than their opponent does. Commonly, they takes less damage than Katarina. This typically indicates differing health capacities, yet it can also indicate that the one champion has less agility and thus is unable to kite away from additional damage when engaged or poked.
Both League champions are great champions. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Vex usually fairs equally well when playing against Katarina, with a 50.5% win rate. As a result, Vex makes an ok counter for Katarina.
While Vex does have a higher winrate than Katarina, when facing one another, Vex also has a much lower level of difficulty that makes them a less challenging champion to learn and master. You still need to be cautious when picking Vex into Katarina.
Furthermore, Vex has some amount of utility and CC, a similar amount to Katarina. This often makes her just as valuable during teamfights, especially when trying to counter champions with a ton of burst damage.
While there isn't a single best champion in League of Legends, in Vex vs Katarina matchups, Vex is the better champion with a similar win rate, less champion complexity, and a similar amount of utility to help out your team members during late stage team fights.
Vex is a decent counter for Katarina. Make sure you focus your gameplay on maximizing your CS and taking out objectives. If you are able to do that, you should hold your own as Vex against Katarina.
If you would like to learn all of the intricacies of Vex in order to counter Katarina during both the laning and mid / late game phases of League of Legends, you should keep reading to learn a few extra lessons on this matchup. If you mind the build and stats displayed here, you should grow your win rate by a lot and be that much closer to League of Legends pro players.
Vex usually gets a similar amount of CS compared to Katarina. Champions who typically don't take much CS usualy don't need much CS to be valuable teammates, such as support champions. They are able to scale properly off of their skills, stats, and first items alone. Yet, champions with a lot of CS, such as hyper-carries, often need a lot of items to be effective. In either situation, try to exceed the numbers displayed here to do well.
The ideal items to prioritize in your Vex versus Katarina build include Rabadon's Deathcap, Stormsurge, and Luden's Companion. When Vex combined at least these three items in their build, they performed much better vs Katarina than with most other common builds. In fact, Vex boasted an average winrate of 50.5% battling Katarina with this build.
To have the best chance of defeating Katarina as Vex, Vex players should equip the Electrocute, Taste of Blood, Eyeball Collection, Ultimate Hunter, Manaflow Band, and Transcendence runes from the Domination and Sorcery rune sets. Of all the rune combinations players picked for Vex vs Katarina counterpicks, this mix of runes resulted in the best win rate. Moreover, these runes provided a 50.5% win rate overall.
If you would like to see Vex versus Katarina tips and counter builds for a a specific division, feel free to choose one from the selection menu displayed above. At first, the stats and strategies given are calculated using all matches run with these champs.