Don't go in first to a large teamfight. Wait for your teammates to initiate.
Tumble has many uses, but it cannot pass over walls.
Condemn can be used to both pin targets to walls to ensure a kill, or to escape a pursuer.
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 shown here show several strategic Vayne versus Ornn counter stats that can help us appreciate the differences and similarities between the pair. As an example, Vayne’s KDA ratio ([kills + assists] / deaths) of NaN is better than Ornn’s ratio of NaN, indicating that Vayne may be more central to her team's team fighting potential than Ornn. This observation is largely fueled by the difference in kills.
Vayne normally has a much larger longest killing spree than her opponent does. Commonly, she takes less damage than Ornn. This commonly reflects differing health capacities, but it can also indicate that the champion with more HP has less agility and thus is not able to escape additional harm when poked or engaged.
Both League of Legends champions are great champions. Both have their strengths, weaknesses, and counters. In League's current meta, Vayne usually wins when trying to fight Ornn, with a 51.3% win rate. Therefore, Vayne makes a good counter for Ornn.
While Vayne does have a higher winrate compared to Ornn, when facing one another, Vayne also has a much greater level of difficulty that makes her a more difficult character to develop with. You should be careful when picking Vayne into Ornnas her relative depth means you may not be able to reach her full potential without a lot of practice beforehand.
Furthermore, Vayne has some amount of utility and CC, a similar amount to Ornn. This often makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there is not one best champion in League of Legends, in Vayne vs Ornn matchups, Vayne is the better champion with a higher win rate, more champion depth, and a similar amount of utility to help out your allied champions during late stage team fights.
Vayne is a decent counter for Ornn. Make sure you focus your strategy on keeping up your gold income and taking out objectives. If you are able to do that, you should do very well as Vayne against Ornn.
To truly master Vayne to counter Ornn 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 tips presented here, you will increase your win rate significantly and be that much closer to League of Legends pro players.
Vayne typically racks up a similar amount of CS relative to Ornn. Champs who on average don't earn many minion kills typically don't have to have much CS to be valuable teammates, such as supports. They are able to scale properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, usually need a lot of items to be effective. In either case, try to exceed the numbers reported on this page to do well.
The most crucial items to focus on in your Vayne versus Ornn build include Bloodthirster, Blade of The Ruined King, and Terminus. When Vayne used at least these three pieces in her build, she performed significantly better countering Ornn than with most other common item sets. In fact, Vayne had an average winrate of 51.3% when countering Ornn with this counter build.
To have the highest probability of coming out on top against Ornn as Vayne, you should equip the Lethal Tempo, Triumph, Legend: Alacrity, Coup de Grace, Conditioning, and Overgrowth runes from the Precision and Resolve rune sets. Of all the runes players chose for Vayne vs Ornn battles, this mixture of runes resulted in the highest win rate. In fact, these runes provided a 51.3% win rate overall.
If you want to get Vayne versus Ornn tips and counter stats for a a particular skill level, feel free to select one from the selection menu above. By default, the statistics and build suggestions given are calculated using all games run with both champs.