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 underscore some important Senna against Orianna matchup stats that may help us interpret the differences between the pair. Senna’s KDA ratio ([kills + assists] / deaths) of NaN is better than Orianna’s KDA ratio of NaN, demonstrating that Senna may be more central to her team's team fighting potential than Orianna..
Senna usually has a similar longest killing spree as her foe does. Commonly, she receives a similar amount of damage to Orianna. This often reflects differing health capacities, yet it can also indicate that the champion with more HP has less agility and thus is not able to flee from 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, Senna usually wins when trying to fight Orianna, with a 53.1% win rate. As a result, Senna makes a great counter for Orianna.
While Senna does have a higher winrate compared to Orianna, when facing one another, Senna also has a greater difficulty level that makes her a more difficult champion to pick up and master. You should be be fine when picking Senna into Oriannaas her relative depth means that you may not be able to unleash her full potential without a significant amount of practice beforehand.
Furthermore, Senna also has a good amount of utility and CC, a similar amount to Orianna. This often makes her just as valuable during teamfights, especially when fighting champions with a lot of burst damage.
While there isn't one best champion for every situation in League of Legends, in Senna vs Orianna matchups, Senna is the better champ with a noticably higher win rate, similar champion depth, and a similar amount of utility to help out your teammates during team fights.
Senna is a great counter to Orianna. You will do well by focussing your play on increasing your gold and cs and clearing objectives. If you can do that, you should do very well as Senna against Orianna.
To learn all of the intricacies of Senna in order to counter Orianna during both the lane and mid / late game phases of League of Legends, you should keep reading to learn a few extra tips and tricks for this matchup. If you listen to the build and tips presented above, you will increase your win rate significantly and be closer to League of Legends pro players.
Senna most often accumulates less CS relative to Orianna. Champions who on average don't acquire much CS typically don't require much CS to be effective, such as support champions. These kinds of champions 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 have to have many items to be effective. In either case, try to exceed the values shown on this page to do well.
The top items to focus on in your Senna versus Orianna build include Youmuu's Ghostblade, Bloodsong, and Voltaic Cyclosword. When Senna bought at least these three items in her build, she performed significantly better versus Orianna than with most other commonly used counter builds. In fact, Senna had an average winrate of 53.1% when countering Orianna with these items in her kit.
To have the highest probability of coming out on top against Orianna as Senna, Senna players should take the Fleet Footwork, Presence of Mind, Legend: Alacrity, Cut Down, Bone Plating, and Revitalize runes from the Precision and Resolve rune sets. Of all the rune combinations we have analyed for Senna vs Orianna battles, this mixture of runes resulted in the greatest win rate. Notably, these runes averaged a 53.1% win rate overall.
By default, tips, stats, and builds on how to beat Orianna as Senna are presented for all skill levels, merged. If you would like to narrow the stats and builds to a distinct division, you may use the selection menu located earlier in the counter matchup guide.