Sivir's Boomerang Blade returns to her after reaching the max range, so you can shift position to hit enemies who would otherwise have evaded it.
Try saving Spell Shield for enemy abilities that can disable you such as stuns and roots.
Ricochet resets Sivir's basic attack timer on activation, so activating this immediately after landing a normal basic attack will maximize damage output.
The stats provided here emphasize some critical Sivir vs. Senna counter statistics that can help you realize the differences and similarities between the pair. For instance, Sivir’s KDA ratio ([kills + assists] / deaths) of NaN is better than Senna’s ratio of NaN, showing that Sivir may be more central to her team's team fighting capacity than Senna..
Sivir normally has a similar longest kill spree as her opponent does. On average, she receives a similar amount of damage to Senna. This commonly reflects differing health capacities, yet it can also imply that the one champ has less mobility and thus is unable to kite away from further damage when engaged or poked.
Both League champions are great champions. Both have their strengths, weaknesses, and counters. In the game's current meta, Sivir usually loses when playing against Senna, with a 44.4% win rate. Therefore, Sivir makes a bad counter for Senna.
While Sivir does have a much lower winrate compared to Senna, when on opposite teams, Sivir also has a lower level of difficulty that makes her a less complex champion to learn. You should be very concerned when picking Sivir into Senna.
Moreover, Sivir has only a small amount of CC and other utility, a similar amount to Senna. This makes her just as valuable during teamfights, especially when trying to counter champions with a ton of burst damage.
While there is not a single best champion in League of Legends, in Sivir vs Senna matchups, Senna 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 team fights.
Sivir is a terribly counter to Senna. Make sure you focus your play on maximizing your gold income and taking out objectives. If you are able to do that, you should hold your own as Sivir against Senna.
If you would like to truly master Sivir in order to counter Senna during both the early game and mid / late game phases of League of Legends, you should continue reading to learn a few extra lessons on this matchup. If you pay attention to the build and suggestions displayed above, you will increase your win rate by a lot and be that much closer to League of Legends pro players.
Sivir most often gets more CS as Senna. Champions who typically don't get much CS often don't need much CS to be effective, such as sup champs. They are capable of scaling properly off of their skills, stats, and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, often need several high cost items to be effective. In either case, try to exceed the values reported here to do well.
The most crucial items to use in your Sivir versus Senna build include Infinity Edge, Lord Dominik's Regards, and Kraken Slayer. When Sivir combined at least these three pieces in her build, she performed significantly better countering Senna than with many other commonly used builds. In fact, Sivir boasted an average win rate of 44.4% battling Senna with this build.
To have the best probability of defeating Senna as Sivir, Sivir players should use the Lethal Tempo, Presence of Mind, Legend: Bloodline, Coup de Grace, Absolute Focus, and Gathering Storm runes from the Precision and Sorcery rune sets. Out of all the runes that we analyzed for Sivir vs Senna counterpicks, this composite of runes yielded the best win rate. In fact, these runes provided a 44.4% winrate overall.
If you want to see Sivir vs Senna tips and counter stats for a a specific skill level, please choose one from the selection menu provided above. At first, the statistics and guides displayed are computed using every match with data with both champions.