Vi cannot be stopped while using her ult. Remember to save your displacement effects until after she's done charging.
A fully charged Vault breaker deals double damage. If you see Vi start to charge you should back off or try to dodge it.
Vi will shred your Armor and gain Attack Speed if she manages to hit you three times in a row. Try not to engage in extended brawls with her.
The stat comparisons provided here emphasize several significant Vex versus Vi matchup statistics that can help you understand the distinctions between the two. Vex’s KDA ratio ([kills + assists] / deaths) of NaN is better than Vi’s KDA ratio of NaN, showing that Vex may be more central to their team's team fighting capacity than Vi..
Vex usually has a similar longest kill spree as their enemy does. Typically, they takes less damage than Vi. This commonly reflects differing health capacities; however, it can also hint that the champ with higher HP has less mobility and thus is unable to escape further damage when poked or engaged.
Both LoL champions are great champions. Both champs have their pros and cons. In the game's current meta, Vex usually loses when trying to fight Vi, with a 46.9% win rate. Thus, Vex makes a poor counter to Vi.
While Vex does have a lower winrate compared to Vi, when they face off with one another, Vex also has a much lower learning curve that makes them a less challenging champ to learn. You should be very concerned when picking Vex into Vi.
Furthermore, Vex has some amount of utility and CC, a similar amount to Vi. This makes her just as valuable during teamfights, especially when trying to counter champions with a ton of burst damage.
While there is not one best champion in League of Legends, in Vex vs Vi matchups, Vi is the better champion with a much lower 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 terribly counter for Vi. You will do well by focussing your actions on maximizing your gold and cs and destroying objectives. If you can do that, you should be able to stand on your own as Vex against Vi.
If you would like to learn all of the intricacies of Vex in order to counter Vi during both the laning and mid / late game phases of League of Legends, you should continue reading to gather a few extra tricks and insights into this matchup. If you pay attention to the build and suggestions presented above, you will increase your win rate significantly and be closer to League of Legends pro players.
Vex usually picks up much more CS relative to Vi. Champions who typically don't earn many minion kills usualy don't have to have much CS to be effective, such as support champions. They are capable of scaling properly off of their skills, stats, and first items alone. Yet, champions with a lot of CS, such as hyper-carries, usually need several high cost items to be effective. In either case, try to do better than the values shown here to do well.
The ideal items to use in your Vex versus Vi build include Rabadon's Deathcap, Stormsurge, and Luden's Companion. When Vex combined at least these three items in their build, they performed a lot better against Vi than with many other commonly used counter builds. In fact, Vex had an average win rate of 46.9% battling Vi with this build.
To have the highest likelihood of crushing Vi as Vex, you should take the Electrocute, Taste of Blood, Eyeball Collection, Ultimate Hunter, Manaflow Band, and Transcendence runes from the Domination and Sorcery rune sets. Of all the runes players picked for Vex vs Vi counter picks, this sequence of runes resulted in the greatest win rate. In fact, these runes provided a 46.9% win rate overall.
If you need to get Vex versus Vi tips and matchup stats and build suggestions for a an individual division rank, feel free to choose one from the selection menu shown above. If viewing for the first time, the statistics and guides shown are calculated using every match completed with both champions.