Orianna can only affect the area the Ball is around. Use this to your advantage.
Watch out for Orianna's Ball returning to her due to leashing. This may cause some unexpected situations.
The stats provided here clarify some vital Vex versus Orianna matchup stats that can help us distinguish the differences between this pair of champions. Vex’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Orianna’s ratio of NaN, highlighting that Vex may be more central to their team's team fighting effectiveness than Orianna..
Vex normally has a slightly larger longest killing spree than their enemy does. Typically, they receives a similar amount of damage to Orianna. This often reflects different amounts of tankyness; however, it can also illustrate that the champion with more health has less agility and thus is unable to kite away from further harm when poked or engaged.
Both League of Legends champions are great. Both champs have their pros and cons. In the game's current meta, Vex usually fairs equally well when playing against Orianna, with a 49.8% win rate. Thus, Vex makes an ok counter to Orianna.
While Vex does have a lower win rate compared to Orianna, when on opposite teams, Vex also has a much lower level of difficulty that makes them a less difficult champ to learn. You still need to be cautious when picking Vex into Orianna.
Moreover, Vex has some amount of utility and CC, a similar amount to Orianna. This often makes her just as valuable during team fights, especially when fighting champions with a ton of burst damage.
While there is not a single best champion in League of Legends, in Vex vs Orianna matchups, Orianna 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 somewhat poor counter to Orianna. Focus your actions on keeping up your gold and cs and destroying objectives. If you are able to do that, you should be able to stand on your own as Vex against Orianna.
To learn all of the intricacies of Vex in order to counter Orianna during both the lane and mid / late game phases of League of Legends, you should keep reading to pick up a few extra lessons on this matchup. If you mind the build and suggestions shown above, you should increase your win rate by a lot and be that much closer to League of Legends pro players.
Vex usually accumulates a similar amount of CS relative to Orianna. Champions who on average don't acquire much CS often don't need much CS to be valuable teammates, such as sup champs. They are capable of scaling well off of their abilities and first items alone. Yet, champions with a lot of CS, such as hyper-carries, often need several high cost items to be effective. In either situation, try to exceed the values reported on this page to do well.
The best items to prioritize in your Vex versus Orianna build consist of Rabadon's Deathcap, Stormsurge, and Luden's Companion. When Vex incorporated at least these three pieces in their build, they performed significantly better against Orianna than with most other common builds. In fact, Vex had an average win rate of 49.8% when playing against Orianna with this build.
To have the greatest likelihood of defeating Orianna as Vex, Vex players should use 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 builds that we analyzed for Vex vs Orianna clashes, this blending of runes yielded the highest win rate. Notably, these runes provided a 49.8% win rate overall.
By default, tips, statistics, and builds on how to beat Orianna as Vex are shown for every ranked division. To narrow the statistics and builds to a specific player tier, you should use the selection menu earlier in the counter matchup guide.